Hmm...<br><br>Using t = sqrt ( 2d/g )<br><br>and a distance of 42 metres I get a total drop time of about 2.9 seconds with out a parachute...<br><br>I also want to say, I love this Wikipedia page: <br><br> <a href="http://en.wikipedia.org/wiki/Equations_for_a_falling_body">http://en.wikipedia.org/wiki/Equations_for_a_falling_body</a><br>
<br><br><div class="gmail_quote">On 20 September 2011 16:06, <span dir="ltr"><<a href="mailto:bentfork@gmail.com">bentfork@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I'm tempted to see if I can inflate a balloon fast enough to make it never reach the ground ;) According to wikipedia (<a href="http://en.wikipedia.org/wiki/Lifting_gas#Hydrogen_versus_helium" target="_blank">http://en.wikipedia.org/wiki/Lifting_gas#Hydrogen_versus_helium</a>) ... <br>
<br><blockquote><blockquote style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex" class="gmail_quote">the buoyant mass for one m<sup>3</sup> of hydrogen in air is:
<ul><li>0.090 kg * (1 - (1.292 / 0.090) ) = -1.202 kg</li></ul></blockquote></blockquote><br><br>A standard touch seems to weigh about 100g<br><br><cite><a href="http://www.apple.com/" target="_blank">www.apple.com/</a><b>ipodtouch</b>/specs.html</cite><span><br>
<br></span><br>Quote of the 'rules'<br><blockquote style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex" class="gmail_quote">
CONSTRAINTS<a name="13288729c6d8ed43_constraints"></a><p>
The sky is the limit with your designs but you have to keep the following constraints in mind:
</p><ul><li>
Freefall means <b>free fall</b> so it's gotta be graceful. There can be no external
forces affecting the device or the drop
won't qualify. This means no spinning, launching, or aggressively
tethering the device. <b>No parachutes.</b>
</li></ul></blockquote><blockquote style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex" class="gmail_quote"><ul><li>
Fall height. We'll be dropping these preservers from
<b>way way up</b>, so be prepared for fall heights upwards of 140 feet.
</li></ul></blockquote>
<br>This may be a lot of fun<br><br><br><div class="gmail_quote"><div class="im">On 20 September 2011 10:27, Darcy Whyte <span dir="ltr"><<a href="mailto:darcy@siteware.com" target="_blank">darcy@siteware.com</a>></span> wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
<a href="http://contest.freefallhighscore.com/contest.html" target="_blank">http://contest.freefallhighscore.com/contest.html</a><div><br></div><div>I got some ideas for this egg-drop challenge. Anybody want to try?
</div>
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