Category Archives: Interesting

How tough is the new £5 note?

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How small can the naked eye see?

Your naked eye can see objects of any size, if they emit or scatter enough light to trigger its detector cells. Light visible from the star Deneb covers a minuscule fraction of your visual field (its ‘angular diameter’ is 0.0024 … Continue reading

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How to move large blocks

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Walking on beautiful clean ice in Slovakian Mountains

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Shooting bullet into Gel in slow motion

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Inflation

By the way, we are a bit disappointed with the new pound coin. – Jim

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Unlucky for some?

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Creating An Inverted Aquarium For Pond

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Hans Rosling: Data visionary and educator dies aged 68

Sad news today. Hans Rosling, our favourite statistician, has died from pantriatic cancer. We would urge you to watch any of Hans’ great presentations, like this one on population. It’s very, very good. Thanks to Phil Krause for bringing this … Continue reading

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This crazy spinning ice disc just appeared in a Michigan river

…A team led by Stéphane Dorbolo from the University of Liége in Belgium decided to get to the bottom of these crazy things once and for all.Using some cameras, a nickel bead, a magnet, and Petri dish popsicles, the researchers … Continue reading

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Indestructible Coating?!

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The Pizza Equation

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Lakes and Oceans

lakes_and_oceans_large

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An embryo in a needle’s eye

An embryo in a needle’s eye, for size comparison. Source: Facebook

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This new tattoo ink is designed to disappear after a year

If you’ve ever considered getting a tattoo but have been put off by its permanence – who knows how you’ll feel about that “E = mc2” face tattoo in 10 year’s time? – then a new startup called Ephemeral has you … Continue reading

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How Accurate Is Wikipedia?

When you Google the question “How accurate is Wikipedia?” the highest-ranking result is, as you might expect, a Wikipedia article on the topic (“Reliability of Wikipedia”). That page contains a comprehensive list of studies undertaken to assess the accuracy of … Continue reading

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The bongs of Big Ben are about to fall eerily silent

Full story: http://bbc.in/1Qyfjqh

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Why is this coin worth $10m?

A US silver dollar worth more than $10m has gone on display in London. But what makes this coin the most valuable in the world?It measures 4cm (1.6in) across and would make $12 if sold for scrap silver today, but … Continue reading

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Here’s how to make perfect diamonds in the microwave

Right now, odds are that one in every four diamonds on sale around the world is a blood diamond – mined in a war zone and sold to finance armed conflict and civil war. And for those wanting to steer … Continue reading

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Lightest Metal Ever

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