Author: David Bradley

Video head cleaner

An engineer friend tells us he was rather heartened to discover that even in the face of
hi-tech problems the young electrical engineer who had come to fix the family video recorder could improvise a low-tech solution to the problem.

Half way through his grandchildren’s viewing of “The Jungle Book” the picture became distorted devastatingly – in the eyes of his grand children, at least. Our friend suspected that an expensive, proprietary head cleaner would be the only answer but having shelled out for said device and found the picture just as bad afterwards he contacted the local repair shop.

He expected the engineer to arrive with an array of tools and equipment and was shocked when, after a quick inspection of the machine, a piece of his cigarette packet was removed, the VCR opened, and the fragment of cardboard scraped across the delicate playback heads.

Biting his tongue for fear of inciting further wanton vandalism, our friend watched as the engineer slotted “The Jungle Book” back into the machine, pressed play and then sat back as the video played perfectly.

For the politically correct, the edge of a business card or stout envelope may work just as well and we’re considering patenting the idea. Just don’t blame us if you b*llox up your machine.

Athletic footsy

A friend of mine changed gyms recently – price hike at the old one – and had been for a couple of workouts and a swim & sauna when he noticed a nasty itching between his toes and that the skin was peeling and inflamed looking.

He guessed it was athlete’s foot and booked an appointment to see the doc. By the time he got to see him, my friend’s feet had gone from bad to worse. The toes were a mess and there were blisters all over the tops of his feet. The doc said it was the worst case of athlete’s foot he’d seen and stuck him on an antifungal and antibiotics to clear it up.

Thankfully, it seems to be going, but it’s left him wondering whether he should have stuck with the old gym. Could it have been a sweaty session in the sauna that did it? Don’t they disinfect these places? Apparently, athlete’s foot is on the up and poor sanitation in health clubs is partly to blame. Still, best foot forward, eh?

Monthly pumping crisis

Despite living on the edge of the fens the house of a friend of ours is slightly “downhill” of the main sewer pipe at the end of the road. Consequently, the house relies on a powerful electric pump-house to assist in the removal of soil water.

At least once a month, however, our friend has to alert the water authorities to another pump failure. They duly send a team of experts to hammer the right valves and kick the starter motor etc.

Recently, our friend cornered one of these “engineers” as he was applying steel toecap to a particularly heavy duty metal casement and asked what he thought the recurrent problem might be. “Sanitary towels”, was his succinct reply qualified with, “‘specially them with wings, they float like fish, see?” “The other thing,” he added “is bloody recycled toilet paper, it just don’t break up the way the old stuff used to.” My friend left the engineer to his unenviable task and went away a little the wiser as to the cause of the periodic effluent disturbances, as well as wondering about the environmental benefits of recycled toilet tissue.

Sex toy

A while ago now, the state of Alabama, USA, passed a noble law making it illegal to sell any device ‘for sexual stimulation of the human genital organs’. In other words if you fancy self-gratification with an appliance of science you’re stuck. The State argued that good vibrations in the bedroom are obscene.
Subsequently, however, six frustrated women went to court in an attempt to get the law overturned on the basis that it violates privacy rights.

The offence carried a $10,000 fine and a jail sentence. But, I wonder, in a country where free expression is so proudly proclaimed, and at a time when serious ethical and moral dilemmas are high on everyone else’s agenda, did Alabama waste taxpayers’ money arguing the toss over dildos?

Clams on Prozac

The sex connection with oysters (I don’t mean sex with them, obviously, but that they’re supposed to be an aphrodisiac) is obvious but what about clams on Prozac?

A US biologist claimed to have discovered that the anti-depressant can help improve the sex lives of shellfish. According to Peter Fong of Gettysberg College he found that the drug stimulates freshwater fingernail clams and zebra mussels to spawn, which could be useful for clam and mussel farmers. A clue as to why lies in the effects of Prozac on raising serotonin levels – the compound not only affects human mental happiness but is the trigger for spawning in these creatures.

Fong added mysteriously that rarely has either animal been observed to spawn in the wild or in the laboratory without the use of an artificial chemical aid. I was puzzled then as to how these aquatic creatures managed to reproduce successfully for millions of years before the invention of Prozac.

Guilty privates

There’s an army barracks attached to a local village that allows the public to use its heated outdoor swimming pool in the summer. I often assumed it was too much chlorine that was the problem with stinging eyes.

But, according to chemist Howard Gosling that typical swimming pool smell actually comes from compounds known as chloramines that form when chlorine reacts with any urine or sweat in the water. Nice. It’s the chloramines not the chlorine that make your eyes sting.

I’ll leave you to draw your own conclusions about why the army pool brings tears to the eyes. Maybe the CO should drop in some of that chemical that turns the water blue of there are any guilty privates swimming.

Illicit CD-ROMs

An Australian chemist friend of mine was giving a lecture recently on how Western chemists might best help their colleagues in the developing world gain access to the mountains of chemical information available without eating into their own budgets too much.

Various systems based around the Web were discussed but industrial delegates were surprisingly more than a little interested in one particular idea concerning CD-ROMs.

My chemist friend planned to set up a cheap subscription service for a monthly CD-ROM that would mirror chemistry sites on the web and so bring the internet to those scientists in poverty-struck institutes with no access. When the queue for samples of the CD-ROM had stretched to the back of the lecture hall my friend asked the next person in line why they were so keen to see the CD-ROM. The startling reply was that their employer was so scared of staff wasting time on the web that all net access was blocked – a CD-ROM could be viewed illicitly without needing a net connection.

Where there’s muck, there’s brass

Where’s there’s muck there truly is brass according to the late Benjamin Luberoff writing in Chemistry & Industry. Luberoff reported that in Sacramento, California, someone is stealing the trash. Not just any old rubbish, mind, the stuff that’s getting the attention of the local criminal fraternity, or sorority, is the tonnes of recyclables residents kindly sort and leave out for collection every week.

It’s easy to load a pickup truck with aluminium Coors cans, paper and glass, drive to the local recycling plant and pick up a few nickels and dimes in return for one’s efforts, he reckons. The local police department estimates that some $400,000 worth of recyclables are being scavenged from among the garbage of the citizenry each year.

A sizeable loss to the city coffers to add to the $250,000 they spend on disposal of old fridges and tyres. I’m waiting with interest to see the same happening in Cambridge where a kerb-side recycling scheme was implemented last year. If it’s good enough for California.

Stick with grubby bedsheets

My Dad is a retired civil engineer and unfortunately for him recently suffered a severe and itchy allergic rash on his legs caused by exposure to a biological washing powder.

After trying a topical antihistamine cream Dad went to his GP who prescribed antibiotics then, as a last resort, a steroid cream known as Betnovate-C.

According to the information leaflet accompanying the tube of cream it ‘may stain hair, skin, or fabric’. So, what’s it doing to your skin, my Dad wondered.

That aside, after a successful treatment, he was a bit puzzled as to how wash out a particularly stubborn mark on the bedsheets. His mind was put at rest by the instructions on the cream’s leaflet – ‘stains may be removed with a biological washing powder,’ it said.

Of course.

Elemental Discoveries

Elemental Discoveries was first published as a spread of chemistry news items written by David Bradley in the mid-1990s for the young chemists magazine New Elements (the name for which, incidentally, DB came up with). In 1996, he began hosting it on the web and by 1999 that proto-blog had morphed into the Sciencebase site, which ultimately became the Sciencebase Science Blog.

If you follow through the Sciencebase archives you may notice gaps, there are legacy pages that are not part of the main content management system (CMS), unfortunately, and so old, and perhaps out of date now, that it would be pointless to fold them into the CMS.

Issue 49

The visible way

The efficient conversion of sunlight to chemical energy has generally been the preserve of photosynthesising life. Until now.

Stellar system stifles landfill stench

Anyone living near a landfill will be familiar with the awful smell of decomposing waste. But, those nasty niffs could soon be history, thanks to British researchers who are tearing the odour molecules apart with a plasma.

A closed view of life

In the growing field of research into biospheres, scientists hope to improve their understanding of what sustains life and so improve our chances of colonising space and even saving the earth from environmental disaster.

Science news site Sciencebase