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#1227 Re: This is Cool » 'Universal urination duration' wins Ig Nobel prize » 2015-09-19 10:46:10

It would probably make a fascinating thesis for someone's PhD.

#1234 This is Cool » 'Universal urination duration' wins Ig Nobel prize » 2015-09-19 09:07:40

zetafunc
Replies: 7

A study showing that nearly all mammals take the same amount of time to urinate has been awarded one of the 2015 Ig Nobel prizes at Harvard University.

These spoof Nobels for "improbable research" are in their 25th year.

The team behind the urination research, from Georgia Tech, won the physics Ig.

Using high-speed video analysis, they modelled the fluid dynamics involved in urination and discovered that all mammals weighing more than 3kg empty their bladders over about 21 seconds.

Their subjects included rats, goats, cows and elephants - and although the findings reveal a remarkably consistent "scaling law" in bigger beasts, they also emphasise that small animals do things quite differently.

Rats can urinate in a fraction of a second, for example. This might make rodents a poor choice for studying urinary health problems.

Source: BBC News

#1235 This is Cool » To scale solar system model built across 7 miles of Nevada desert » 2015-09-19 09:00:36

zetafunc
Replies: 4

"If you treat the Earth as a marble, what would an accurate, to-scale model of the Solar System actually look like? Something much larger and expansive than a textbook illustration would suggest. To explain the sheer scale of our planetary system, Wylie Overstreet, Alex Gorosh and some friends decided to build their own model at a dry lakebed in Nevada. Using a reported scale of 1 astronomical unit per 176 metres, the group leveraged seven miles of empty desert to plot the planets and etch their orbital lines into the dirt. Sure, you can't print it out or keep it on your desk, but it's a novel idea and does a fantastic job of putting our Solar System into perspective."

Source, and video

#1236 Re: Maths Teaching Resources » perpendicular bisector » 2015-09-19 08:47:51

It's OK, but you should probably say that the line need not be 6 cm long somewhere.

#1246 Re: Puzzles and Games » Add 13 more and post it forever. » 2015-09-19 03:05:25

bobbym wrote:

26000 what a number! I am unable to get 13 out of it.

Would
be allowed?

26013

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