Re: pinhole physics and biology urban legends

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From: Algis Sodonis (asodonis@urbanschool.org)
Date: Mon Feb 02 2004 - 20:33:45 PST 

Message-id: <fc.000f76110058ff8d3b9aca005f9ee8ab.58ffbd@urbanschool.org>
Date: Mon, 02 Feb 2004 20:33:45 -0800
Subject: Re: pinhole physics and biology urban legends
From: "Algis Sodonis" <asodonis@urbanschool.org>

Here's a common physics misconception:

the reason astronauts float in the space station is because the space station is so far away from the earth that they are beyond the gravitational field of the Earth.

Algis Sodonis.

"Pinhole Listserv" <pinhole@exploratorium.edu> writes:
>Hi Pinholers
>
>Next Saturday's class is on Urban legends of physics and biology.
>
>I'm doing the physics ones, Karen K is doing the biology ones.
>
>Here are some I have already:
>
>These are all incorrect statements:
>
>Room temperature glass flows and is a liquid as shown by old church windows.
>
>When a candle burns in an inverted beaker sealed by water the water rises
>because the oxygen is consumed.
>
>Polar Bear fur is a fiber optic.
>
>A penny thrown off the empire state building will penetrate the roof of a car.
>
>The air flowing over a wing goes faster because it has to meet up with the
>air flowing under a wing.
>
>A rotating baseball curves when moving through the air because the velocity
>(relative to the surface of the baseball) of the air flowing around one
>side of the spinning ball is faster than the speed around the other
>side.(The parentheses are all important here, remove the parenthetical
>statement and this statement is true.)
>
>Please suggest your favorites..
>
>Thanks
>
>Paul D
>
>
>
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