Jake or Elwood?

Our baby Blues Brother!

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Quote of the day

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‘bent over the Pennines Day 4 : Salterforth to Holmfirth – 41 (hard) miles

IMG_6419The campsite at Salterforth had little to recommend it apart from its convenient location so I headed out early along the canal towpath towards Foulridge. The flat start to the day was to be a vast contrast to what was waiting beyond Colne. The next three valleys I was to cross seemed to have near vertical sides to them, and the initial climb was tough to impossible in each case. Could I have ridden all the way up these on a conventional bike? Somehow I doubt it would have been possible even then. However, in each case the gradient soon reduced some quarter of a mile up each climb into something steady and manageable. The tops of the fells were at their very best in the glorious sunshine. Reservoirs were features at the top of each of these fells and they were lovely in each case


On one fell top, as I stopped for a drink, I met the only people I was to meet on the tour who were riding the same route as me – NCN 68. They were heading North and were keen to hear which sections of ‘off road’ where OK to tackle and which to avoid. As I said in an earlier post I was indebted to the group from CTC Cambridge whose blog had given me the low down on this and had guided me well on all but the rail bed of day 1.

The next landmark was the M62. Whilst I was doing this ride to enjoy the wild splendor of the hills, there always seems something special about crossing a motorway. Perhaps this is because of my penchant for riding or walking ‘Coast to Coast’ and because the M6 and A1 feel like major milestones on such crossings? Route 68 takes a tunnel under the M62 which was rather fun.

It was time for a rest when I reached bustling Hebden Bridge and time to top of up water. The Metabike turned heads and a number of people were keen to know ‘how do you start off on that thing’ and ‘can we watch you set off?’ It pays not to be too shy if you ride a ‘bent because you are always going to stand out from the crowd. I decided to follow the canal towards Sowerby Bridge but soon found this too slow for my liking. Also I simply didn’t feel confident riding over the cobbles which seemed to be a feature under each bridge so I headed out onto the A646. Route 68 takes you South of the canal on minor roads, but this would have been very up and down. After my climb over the fells from Colne I wanted lunch before I tackled anything too challenging again.

IMG_6426On the outskirts of Sowerby Bridge ‘Friendly Fisheries’ came into view and this looked a good place/plaice to buy lunch. The day was sunny and warm, the hills significant and your truly was good and sweaty. As the lady behind the counter rooted through the Haddock to choose one to fry she seemed to be paying undue attention to the task. I must have looked like I’d done a good mornings work because the result, once cooked, was a very big portion – I must have conveyed the full hunger I was feeling! Once again I had to push the bike up the initial ascent out of Sowerby Bridge– but a bench at the top of the steep section gave me a lunch-spot with a view over the town.

This time the fell had a greater length of elevated section which I enjoyed greatly. Once again there was an attractive reservoir to ride around. Interestingly some of the reservoirs in this area provide water to the high sections of the local canals rather than drinking water. Finally I descended through the attractive and amusingly titled Upper Thong. My schoolboy mind boggled! It had been the toughest day yet by some margin and it was almost dinner time when I peddled into the attractive Holme Valley campsite just outside Holmfirth. I was to save Holm Moss, made famous by day two of the TDF until the morning.

Coming soon – Holmforth to Dovedale, the concluding section of my Spine of England tour.

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‘bent over the Pennines Day 3 – Castle Bolton to Salterforth – 45 miles

IMG_6412The start of the day took me along Wensleydale; fast riding with gentle undulations. Soon however, the climb up into Coverdale began along with the wonderful views which this affords. For most of the ride up this Dale the gradients are gentle, but you know you are heading ever upwards. Finally the string of settlements come to an end and the real climbing, up the Flank of Great Whernside, begins. Once above the treeline, the views stretch a long way and you really feel a sense of exhilarating isolation. The final stretch of climb saw me walking on two occasions, but thanks to a quick prayer, the clouds depositing their blessings into the next valley and not onto me. A climb like this, in summer, in Goretex would have been very warm indeed. The view from Park Rash Pass made me feel I was looking down on the whole of the Dales.

The descent towards Kettlewell was steep and winding, the 25% sections reminding me why I’ve always ridden this from NE to SW and not in reverse. Descending a 25% gradient on a recumbent is an odd sensation as it almost feels as if you are standing upright.

I was feeling tired as I headed along Wharfedale towards Grassington and glad to be following the valley floor. Lunchtime would see me all but on the edge of the Dales and about to leave Yorkshire for Lancashire. My support crew met me Hetton for lunch and I was able to shelter from the lunchtime shower in the van, Barm cake in hand.

I was now back on familiar ground with my route criss-crossing the Leeds to Liverpool Canal through Gargrave and Barnoldswick and finishing in Salterforth. I was now on the route I took when I first took the Metabike out for a long ride. Finishing mid-afternoon gave time for Nathan to enjoy an a bath ‘al fresco…


…and then for the whole family to take a walk along the canal, albeit in the rain which I had managed to miss seeing close up all day.

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Why explore space?



A letter from Ernst Stuhlinger of NASA to a Zambian Nun, Sister Mary Jucunda.

Get yourself a brew, settle down and read this – it really is food for thought. Originally published here.

May 6, 1970

Dear Sister Mary Jucunda:

Your letter was one of many which are reaching me every day, but it has touched me more deeply than all the others because it came so much from the depths of a searching mind and a compassionate heart. I will try to answer your question as best as I possibly can.

First, however, I would like to express my great admiration for you, and for all your many brave sisters, because you are dedicating your lives to the noblest cause of man: help for his fellowmen who are in need.

You asked in your letter how I could suggest the expenditures of billions of dollars for a voyage to Mars, at a time when many children on this Earth are starving to death. I know that you do not expect an answer such as “Oh, I did not know that there are children dying from hunger, but from now on I will desist from any kind of space research until mankind has solved that problem!” In fact, I have known of famined children long before I knew that a voyage to the planet Mars is technically feasible. However, I believe, like many of my friends, that travelling to the Moon and eventually to Mars and to other planets is a venture which we should undertake now, and I even believe that this project, in the long run, will contribute more to the solution of these grave problems we are facing here on Earth than many other potential projects of help which are debated and discussed year after year, and which are so extremely slow in yielding tangible results.

Before trying to describe in more detail how our space program is contributing to the solution of our Earthly problems, I would like to relate briefly a supposedly true story, which may help support the argument. About 400 years ago, there lived a count in a small town in Germany. He was one of the benign counts, and he gave a large part of his income to the poor in his town. This was much appreciated, because poverty was abundant during medieval times, and there were epidemics of the plague which ravaged the country frequently. One day, the count met a strange man. He had a workbench and little laboratory in his house, and he labored hard during the daytime so that he could afford a few hours every evening to work in his laboratory. He ground small lenses from pieces of glass; he mounted the lenses in tubes, and he used these gadgets to look at very small objects. The count was particularly fascinated by the tiny creatures that could be observed with the strong magnification, and which he had never seen before. He invited the man to move with his laboratory to the castle, to become a member of the count’s household, and to devote henceforth all his time to the development and perfection of his optical gadgets as a special employee of the count.

The townspeople, however, became angry when they realized that the count was wasting his money, as they thought, on a stunt without purpose. “We are suffering from this plague,” they said, “while he is paying that man for a useless hobby!” But the count remained firm. “I give you as much as I can afford,” he said, “but I will also support this man and his work, because I know that someday something will come out of it!”

Indeed, something very good came out of this work, and also out of similar work done by others at other places: the microscope. It is well known that the microscope has contributed more than any other invention to the progress of medicine, and that the elimination of the plague and many other contagious diseases from most parts of the world is largely a result of studies which the microscope made possible.

The count, by retaining some of his spending money for research and discovery, contributed far more to the relief of human suffering than he could have contributed by giving all he could possibly spare to his plague-ridden community.

The situation which we are facing today is similar in many respects. The President of the United States is spending about 200 billion dollars in his yearly budget. This money goes to health, education, welfare, urban renewal, highways, transportation, foreign aid, defense, conservation, science, agriculture and many installations inside and outside the country. About 1.6 percent of this national budget was allocated to space exploration this year. The space program includes Project Apollo, and many other smaller projects in space physics, space astronomy, space biology, planetary projects, Earth resources projects, and space engineering. To make this expenditure for the space program possible, the average American taxpayer with 10,000 dollars income per year is paying about 30 tax dollars for space. The rest of his income, 9,970 dollars, remains for his subsistence, his recreation, his savings, his other taxes, and all his other expenditures.

You will probably ask now: “Why don’t you take 5 or 3 or 1 dollar out of the 30 space dollars which the average American taxpayer is paying, and send these dollars to the hungry children?” To answer this question, I have to explain briefly how the economy of this country works. The situation is very similar in other countries. The government consists of a number of departments (Interior, Justice, Health, Education and Welfare, Transportation, Defense, and others) and the bureaus (National Science Foundation, National Aeronautics and Space Administration, and others). All of them prepare their yearly budgets according to their assigned missions, and each of them must defend its budget against extremely severe screening by congressional committees, and against heavy pressure for economy from the Bureau of the Budget and the President. When the funds are finally appropriated by Congress, they can be spent only for the line items specified and approved in the budget.

The budget of the National Aeronautics and Space Administration, naturally, can contain only items directly related to aeronautics and space. If this budget were not approved by Congress, the funds proposed for it would not be available for something else; they would simply not be levied from the taxpayer, unless one of the other budgets had obtained approval for a specific increase which would then absorb the funds not spent for space. You realize from this brief discourse that support for hungry children, or rather a support in addition to what the United States is already contributing to this very worthy cause in the form of foreign aid, can be obtained only if the appropriate department submits a budget line item for this purpose, and if this line item is then approved by Congress.

You may ask now whether I personally would be in favor of such a move by our government. My answer is an emphatic yes. Indeed, I would not mind at all if my annual taxes were increased by a number of dollars for the purpose of feeding hungry children, wherever they may live.

I know that all of my friends feel the same way. However, we could not bring such a program to life merely by desisting from making plans for voyages to Mars. On the contrary, I even believe that by working for the space program I can make some contribution to the relief and eventual solution of such grave problems as poverty and hunger on Earth. Basic to the hunger problem are two functions: the production of food and the distribution of food. Food production by agriculture, cattle ranching, ocean fishing and other large-scale operations is efficient in some parts of the world, but drastically deficient in many others. For example, large areas of land could be utilized far better if efficient methods of watershed control, fertilizer use, weather forecasting, fertility assessment, plantation programming, field selection, planting habits, timing of cultivation, crop survey and harvest planning were applied.

The best tool for the improvement of all these functions, undoubtedly, is the artificial Earth satellite. Circling the globe at a high altitude, it can screen wide areas of land within a short time; it can observe and measure a large variety of factors indicating the status and condition of crops, soil, droughts, rainfall, snow cover, etc., and it can radio this information to ground stations for appropriate use. It has been estimated that even a modest system of Earth satellites equipped with Earth resources, sensors, working within a program for worldwide agricultural improvements, will increase the yearly crops by an equivalent of many billions of dollars.

The distribution of the food to the needy is a completely different problem. The question is not so much one of shipping volume, it is one of international cooperation. The ruler of a small nation may feel very uneasy about the prospect of having large quantities of food shipped into his country by a large nation, simply because he fears that along with the food there may also be an import of influence and foreign power. Efficient relief from hunger, I am afraid, will not come before the boundaries between nations have become less divisive than they are today. I do not believe that space flight will accomplish this miracle over night. However, the space program is certainly among the most promising and powerful agents working in this direction.

Let me only remind you of the recent near-tragedy of Apollo 13. When the time of the crucial reentry of the astronauts approached, the Soviet Union discontinued all Russian radio transmissions in the frequency bands used by the Apollo Project in order to avoid any possible interference, and Russian ships stationed themselves in the Pacific and the Atlantic Oceans in case an emergency rescue would become necessary. Had the astronaut capsule touched down near a Russian ship, the Russians would undoubtedly have expended as much care and effort in their rescue as if Russian cosmonauts had returned from a space trip. If Russian space travelers should ever be in a similar emergency situation, Americans would do the same without any doubt.

Higher food production through survey and assessment from orbit, and better food distribution through improved international relations, are only two examples of how profoundly the space program will impact life on Earth. I would like to quote two other examples: stimulation of technological development, and generation of scientific knowledge.

The requirements for high precision and for extreme reliability which must be imposed upon the components of a moon-travelling spacecraft are entirely unprecedented in the history of engineering. The development of systems which meet these severe requirements has provided us a unique opportunity to find new material and methods, to invent better technical systems, to manufacturing procedures, to lengthen the lifetimes of instruments, and even to discover new laws of nature.

All this newly acquired technical knowledge is also available for application to Earth-bound technologies. Every year, about a thousand technical innovations generated in the space program find their ways into our Earthly technology where they lead to better kitchen appliances and farm equipment, better sewing machines and radios, better ships and airplanes, better weather forecasting and storm warning, better communications, better medical instruments, better utensils and tools for everyday life. Presumably, you will ask now why we must develop first a life support system for our moon-travelling astronauts, before we can build a remote-reading sensor system for heart patients. The answer is simple: significant progress in the solutions of technical problems is frequently made not by a direct approach, but by first setting a goal of high challenge which offers a strong motivation for innovative work, which fires the imagination and spurs men to expend their best efforts, and which acts as a catalyst by including chains of other reactions.

Spaceflight without any doubt is playing exactly this role. The voyage to Mars will certainly not be a direct source of food for the hungry. However, it will lead to so many new technologies and capabilities that the spin-offs from this project alone will be worth many times the cost of its implementation.

Besides the need for new technologies, there is a continuing great need for new basic knowledge in the sciences if we wish to improve the conditions of human life on Earth. We need more knowledge in physics and chemistry, in biology and physiology, and very particularly in medicine to cope with all these problems which threaten man’s life: hunger, disease, contamination of food and water, pollution of the environment.

We need more young men and women who choose science as a career and we need better support for those scientists who have the talent and the determination to engage in fruitful research work. Challenging research objectives must be available, and sufficient support for research projects must be provided. Again, the space program with its wonderful opportunities to engage in truly magnificent research studies of moons and planets, of physics and astronomy, of biology and medicine is an almost ideal catalyst which induces the reaction between the motivation for scientific work, opportunities to observe exciting phenomena of nature, and material support needed to carry out the research effort.

Among all the activities which are directed, controlled, and funded by the American government, the space program is certainly the most visible and probably the most debated activity, although it consumes only 1.6 percent of the total national budget, and 3 per mille (less than one-third of 1 percent) of the gross national product. As a stimulant and catalyst for the development of new technologies, and for research in the basic sciences, it is unparalleled by any other activity. In this respect, we may even say that the space program is taking over a function which for three or four thousand years has been the sad prerogative of wars.

How much human suffering can be avoided if nations, instead of competing with their bomb-dropping fleets of airplanes and rockets, compete with their moon-travelling space ships! This competition is full of promise for brilliant victories, but it leaves no room for the bitter fate of the vanquished, which breeds nothing but revenge and new wars.

Although our space program seems to lead us away from our Earth and out toward the moon, the sun, the planets, and the stars, I believe that none of these celestial objects will find as much attention and study by space scientists as our Earth. It will become a better Earth, not only because of all the new technological and scientific knowledge which we will apply to the betterment of life, but also because we are developing a far deeper appreciation of our Earth, of life, and of man.

(at top of this page)

The photograph which I enclose with this letter shows a view of our Earth as seen from Apollo 8 when it orbited the moon at Christmas, 1968. Of all the many wonderful results of the space program so far, this picture may be the most important one. It opened our eyes to the fact that our Earth is a beautiful and most precious island in an unlimited void, and that there is no other place for us to live but the thin surface layer of our planet, bordered by the bleak nothingness of space. Never before did so many people recognize how limited our Earth really is, and how perilous it would be to tamper with its ecological balance. Ever since this picture was first published, voices have become louder and louder warning of the grave problems that confront man in our times: pollution, hunger, poverty, urban living, food production, water control, overpopulation. It is certainly not by accident that we begin to see the tremendous tasks waiting for us at a time when the young space age has provided us the first good look at our own planet.

Very fortunately though, the space age not only holds out a mirror in which we can see ourselves, it also provides us with the technologies, the challenge, the motivation, and even with the optimism to attack these tasks with confidence. What we learn in our space program, I believe, is fully supporting what Albert Schweitzer had in mind when he said: “I am looking at the future with concern, but with good hope.”

My very best wishes will always be with you, and with your children.

Very sincerely yours,

Ernst Stuhlinger

Associate Director for Science

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‘bent over the Pennines Day 2 – Appleby to Castle Bolton – 40 miles

After rain overnight, the weather cleared for another dry sunny day. This was to be the dawn of the greatest day of cycling I’ve ever enjoyed in the UK.   The day started on gentle rolling terrain heading East into Kirkby Steven. Mellow riding in lovely sunshine. The gentle ripples of the landscape became ever bigger, just like the pattern of waves on a pond as you look towards where the stone plopped into the water. I was now on the same roads as the part of our extended Dales Cycleway but without any hint of rain this time. Then I came to Barras and what a mighty slope faces you when you leave the village on the Tan Hill Road. Last time it beat me, but this time I conquered! Once up the steep section it was then a really pleasant gentle climb all the way up to the highest pub in England. The views just got better and better as I climbed. I recalled slogging up here in heavy rain just a few weeks previously – what a difference some sunshine makes (I imagine the lack of a 20 kg trailer helped a little too). I was buoyed up by the time I reached the Tan Hill Inn and had worked up a thirst.


Suitably hydrated I headed up onto Arkengarthdale Moor which yielded a fabulous vista over Yorkshire to the West, whilst temptingly hiding the delights of Swaledale to the East. A satisfying flat section (possibly the last I was going to see before reaching Derbyshire three days later) the gave way to a sweeping descent towards the fabulously named Whaw – and phwoar! what a view greeted me there.


A cheeky little climb is all the stood between me and the steep drop into Reeth and my lunch spot – sat on the green in the sunshine alongside the support crew who met me for lunch.

ReethThere wasn’t far to go now, it being a day it would not be practical to extend. You don’t just slip Coverdale onto the end of a day as an afterthought, well not unless you are Sir Bradley anyway. Next was [Côte de] Grinton Moor – one of the climbs on Le Grand Depart. I noted that the TDF route took the lower, easier road over the aptly named Wimp Hill… I took the route over the top on the Dales Cycleway, although admittedly I did have to stop for a puff on a few occasions on the way up. On a recumbent you have to spin up a hill, which is OK unless the hill is too steep for too long. A short section of 1:5 is OK, as is many miles of 1:8 but something in between can leave you anoxic. Once again, what was steep at the start settled out as soon as the first 10% was out of the way. How lovely to then freewheel down into Wensleydale, the home of Wallace’s favourite cheese and a chance to take Mrs W (and Junior) out to the Bolton Arms to celebrate our 8th wedding anniversary. And since this is apparently the ‘salt’ anniversary, chips were a cultural must. What a truly great day.

 Coming soon ‘bent over the Pennines Day 3 – Castle Bolton to Barnoldswick.

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SOLD – HP Velotechnik Scorpion 20fs


I am now sold on riding on two wheels, so am offering the following excellent recumbent trike – specified for commuting or touring for sale.

HP Velotechnik Scorpion 20fs recumbent trike – £2700 ono

  • Grey-blue paintwork – excellent condition, but not quite perfect
  • Suspension front and rear (100 kg rated rear spring)
  • 20” wheels all round
  • 27 speed – Dual Drive Hub paired with 9 speed Shimano cassette (min. 19 Gear Inches)
  • Shimano ‘Dura Ace’ bar end shifters
  • HPV Parking brake built into both front brake handles.
  • HPV Mesh seat (std size)
  • SKS Mudguards
  • Original HPV rear rack
  • Schwalbe Triker tyres
  • Two mirrors
  • Adapted Cateye Cycle Computer and ‘Paul’ Headset Mount
  • Cable oilers fitted to both gear cables (to avoid freezing in wet winters)

Purchased new in September 2012, 2300 miles ridden since then. Serviced every six months in line with HPV’s instructions.  More pictures here.  All enquiries via this blog or PM me via the Bentrider forum as weston.front.

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The Spine of England Cycle Tour – or ‘bent over the Pennines!

Day 1 – Haltwhistle to Appleby-in-Westmorland – 57 miles

 When pondering what to do for our next holiday, Mrs W came up with an interesting and very generous idea. ‘Why don’t you find a route you want to ride, and Junior and I will drive along in the [camper] van as your support vehicle, meeting you for lunch and each evening.’ So I found a topographical map of the UK with all the long distance Sustrans trails overlaid on it – Route 68, or the ‘Pennine Cycleway’ jumped out as being an ideal length and also, given the terrain, a good route to ride supported rather when hauling panniers.  Ideal for the Metabike.

A long stretch of the Northern end of route 68 is on ‘non road’ cycle routes. A helpful blog account of someone else’s experience of the ride told me this would be far from ideal on my very rigid recumbent, so I started on the Northumbria border at Haltwhilstle.

The start of the ride

The start of the ride

The initial cycle-route was tarmac paved and a pleasure to ride along. However after a few miles the surface changed to cinder track – OK – and then to crude hogging and then ran mostly in tree lined cuttings. The surface required a a good deal of concentration meaning I could not look at the view, and then in the cuttings there was nothing to see but trees anyway. Luckily my GPS Map told me I was about to come alongside the A689 which also went to my next waypoint of Alston. Normally I’d avoid A roads, but it seemed a better option so I hopped off onto it. In fact it was quiet, and for anyone wishing to ride this route who wants to see the gorgeous Northern Pennines rather than tree lined cuttings I would recommend it. It runs all the way from Haltwhistle to Alston.

 The route then continued on the road and took me towards the infamous Hartside. I had memories of climbing over this 1900’ hill from two years previously as it also features on the C2C route. Last time we had approached it from the West and into a headwind blowing at a bracing Force 7 (I did see one lad blown over backwards – akin to a wheelie going to far – by the wind last time…). Ironically I found myself facing a headwind again despite now approaching from the East! However, not only was it only very modest, I experienced the benefit of riding recumbent and it had very little impact on me at all. Hartside, I’ve now come to learn, is an easier prospect from the East. It is a longer, more gentle and more consistent gradient.   Nevertheless getting to the top felt good.

Hartside Summit

Hartside Summit

The route then took me on flatter ground with the hills to my right. Lovely views tracked me all the way to Dufton. This was were I was ‘due’ to stop for the day. But it was only 1430, I felt good and the campsite looked less than inviting so after a call to the support crew we decided to meet up for the night in a campsite just outside Appleby. The final sweep into Appleby was glorious, with a slight downward slope following a very pretty stream into the outskirts of the town. Ideal ‘bent terrain which I enjoyed to its best employing the ‘big cog’ and getting up a good speed until reaching the town itself. A close look at the map suggested that it would be possible to bypass the town and cut a couple of miles off of my ‘extended’ day by taking advantage of a footbridge across the River Eden. After then a total of 57 miles I met up with the family and the van for the night.

Coming soon – ‘bent over the Pennines Day 2 : Appleby to Castle Bolton via Tan Hill…

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On yer bike again..and a rant


A good list from James which all car drivers should read. If every one road a bike for a while then we’d all be better drivers (not just a flippant comment, but a statistically proven fact)

Originally posted on Bike Around Britain:

It’s been great getting back on my bike again over the last few weeks, after a significant pause due to travelling for work and being otherwise busy. I turned 39 over the weekend and have resolved to try and manage my work-life balance a bit better, and to get healthier both in body and spirit. Being totally focused on the job just isn’t good for oneself, and actually makes you less productive at work; starting to write my blog again will no doubt keep me motivated.

The last major cycling I did was back in March when I took a holiday in Tenerife with my brother, sister-in-law and their kids. It was a great break, and Tenerife is brilliant for cycling; many a professional team have training camps out there. I hired a bike for a few days and cycled up Mount Teide, Tenerife’s volcano and one of the longest…

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The best (technical) question I think I’ve ever been asked…

Over the thirteen years I’ve been employed as ‘Technical Support’ on various chemical plants and processes I’ve had a good number of unusual requests : What would be the relative stability of iridium verses ruthenium acetate when mixed with soil? Why does the calcium level in our product seem to trend with the extent of local rainfall? What are these cheap carbon monoxide sensor actually made of? Can I tell someone if the black solid coming out of their new plumbing is coming from their old lead piping? The cork is stuck in this wine bottle, do I know clever way to get it out (I did – I used the differential expansion rates of glass (fast) and cork (slow) and heated the neck of the bottle under hot running water).

 But last week I believe I had a question to top them all. “My white horse has poo staining on the skin of his buttocks – what would I suggest to get it off? I’ve already tried bleach, Napisan and oven cleaner.” First let me say I would not advise the application of any of these products to the skin or any animal or any human for that matter. I once worked with a chap you used bleach to remove silver oxide stains from his skin at the end of a shift – it is true that it removed the silver, but it also removed a significant amount of skin (so don’t try this one at home.)

 I wondered if the question came to me because Mrs W is a vet or whether as the senior chemist on site this was a question I would be expected to answer? I like to think the latter, but I guess when my applied biochemistry lectures covered the removal of stains from horses rear quarters I must have dosed off and missed that section.

 In fact advice on the removal of metal / metal salt residues from reactor walls was a relatively common question in my last but one job. However generally this was related to ruthenium or palladium and not poo! However a question is a problem, and a problem can always be broken down and then a solution can be devised by finding the key part of the deconstructed problem. It was fortunate that I had been of enquiring mind when changing the nappy of our son a few weeks ago and was reminded that poo comes in many colours. So my wife being a vet (and thus an expert in all things excreted) I asked, because she was on hand and I’d never pondered the question before in the last 40 years, what is it that makes poo brown? The answer? Old discarded blood cells. So of course the reason behind the colour of blood is the iron in the hemoglobin . So my question was really – how can you solubilise an iron salt impregnated into skin to be able to wash it out? It is clear that the use of bleach (hypochlorite) or nappy cleaner (peroxide) was never going to help.

 So I asked myself – how would I remove iron salts from a reactor? Nitric or hydrochloride acids would both be good choices, but in my case this would be rather bad news for the horse. Then I thought again, what could I use to complex the iron and render it soluble? Well that is something of a schoolboy question when you think like that – EDTA would surely be a great choice. I recall my Ph.D supervisor demonstrating some iron chemistry in a champagne bottle in a lecture and getting his reagent levels a little wrong a coating the first two rows of the lecture theatre in iron oxide – and then a number of us in the lab having a lot of buckets of clothes to clean on his behalf, we used EDTA solutions. To bring this ever lengthening story to a close – it worked. The horse is fit to go to a show in the summer and the groom made me a proposal of marriage she was so surprised that I had suggested something that worked. Of course I politely declined, but figure this was the most effective problem solving I’ve done on site this month and the most obscure question I’ve get been asked in my role as Technical Support. Do keep them coming though…

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