NewScientist The Last Word - Tag 'human' details

Tag 'human' details

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Bigger bag Why, when you pour boiling water on a teabag, does the bag inflate?William Hughes-Games, Waipara, New Zealand
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Asked by Michael Marshall
on 2008-02-06 17:50:04

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Categories: Domestic Science.

Tags: human body, unanswered, domestic science.

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The best bits In a worst-case scenario, if one had to eat parts of oneself, which non-organs would be the most nutritious? Nails? Hair? Earwax?David Klein, Palmerston North, New Zealand
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Asked by Michael Marshall
on 2008-02-06 17:49:31

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Categories: Human Body.

Tags: human body, unanswered.

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Twisted logic

Can anyone explain why a tree would twist itself almost to destruction in the way this one has (see Photo)? It is located at 900 metres above sea level at the north entrance to Yosemite National Park in California. Obviously this isn't an area where there is 24-hour sunlight, which might induce it to chase itself all the way around, yet it appears twisted through three complete rotations.Stewart Brown, Bristol, UK

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Asked by Michael Marshall
on 2008-02-01 18:47:53

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Categories: Plants, Unanswered.

Tags: human body, unanswered, plants.

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Flights of Fancy Why did I find the peak of Mount Etna covered in ladybirds but devoid of other visible flora or fauna (see Photo)?Jennifer NorthThere are three plausible answers to this one. Take your pick - Ed
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Asked by Emily
on 2008-02-01 18:47:35

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Categories: Human Body, Animals, Unanswered.

Tags: human body, animals, unanswered.

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Life glue What causes cells to stick together in the human body rather than simply falling apart?McKenzie Gibson, Glasgow, UK
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Asked by Michael Marshall
on 2008-01-16 17:48:40

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Categories: Domestic Science, Human Body, Planet Earth, Unanswered.

Tags: human body, unanswered, domestic science, planet earth.

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Eye liner Make a pinhole in a piece of cardboard. Bring your eye close to it and look through the pinhole as you rotate the card. You will see the network of your retinal capillaries against the background of a cloudy sky. How does this happen?Doohan Cho, Seoul, South Korea
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Asked by Michael Marshall
on 2008-01-09 17:52:11

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Categories: Human Body.

Tags: human body, Fingernail.

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No swimming

Everyone I know was told as a small child not to swim within an hour of eating. Why is this?Louis Counter, Croydon, Surrey, UKSeveral people suggested that this is a groundless old wives' tale, although our understanding of physiology suggests otherwise. A few pointed to carbohydrate loading, performed by marathon runners before a race, as evidence that the body copes well with eating and exertion after only a short interval. The question is, how short should that interval be? See Jon Richfield's answer below - Ed

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Asked by Michael Marshall
on 2008-01-09 17:52:01

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Categories: Human Body.

Tags: human body, animals.

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Lounging lizard While on the volcanic island of Fogo in Cape Verde recently, I noticed a small lizard that often placed all four feet on its back (see Photo). Why would it do this? It was midday, about 20 Â°C and in strong sunlight.Gerben de Jager, Rijswijk, Netherlands
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Asked by Michael Marshall
on 2008-01-09 17:51:50

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Categories: Human Body, Animals, Unanswered.

Tags: human body, animals, unanswered.

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Filthy lucre?

Can viruses and bacteria be transmitted on coins or notes, which pass through so many hands? What is the likelihood of catching something unpleasant from money, and if it does harbour disease, what might I catch? Finally, what is the average number of germs likely to be hitching a ride on coins or paper money?Michaela Lanzarotti, Pesaro, ItalyViruses can survive on banknotes, as scientists in Switzerland recently showed when they dripped flu virus onto notes accompanied by human nasal mucus. The viruses remained viable for up to 17 days (see www.newscientist.com/channel/health/dn12116) - Ed

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Asked by Michael Marshall
on 2007-12-12 17:47:40

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Categories: Domestic Science, Human Body.

Tags: human body, domestic science.

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Blow it out Right now I have a cold. After blowing my nose for what seems like the millionth time, I wondered just how much mucus the nose produces during the average cold, and does its loss mean I lose any substantial amount of weight?Nick Brown, New Zealand (Image: evah, stock.xchng)
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