How fast do express elevators travel?
An express elevators travel 10 mph, 14 feet per second, 800 feet per minute, or as fast as a raindrop falls to earth. In fact, a snowflake falls at 3 mph, so in an express elevator during a snowstorm it would appear to be snowing up.(That is if the elevator was outside and made of glass)
Why is bird poop white?
Unlike mammals, birds don't urinate. Their kidneys extract nitrogenous wastes from the bloodstream, but instead of excreting it as urea dissolved in urine as we do, they excrete it in the form of uric acid. Uric acid has a very low solubility in water, so it emerges as a white paste. This material, as well as the output of the intestines, emerges from the bird's cloaca. The cloaca is a multi-purpose hole for birds: their wastes come out of it, they have sex by putting their cloacas together, and females lay eggs out of it.
5 comments:
What did we do before Google?
Elevators are also the safest mode of transportation known to man.
Hmm, interesting little facts there.
hello? you still around?
Brian......interesting.
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