[islandlabs] ballon at ICON real time video: Weight of ethernet
burns at cshl.edu
Thu Mar 18 20:46:08 EDT 2010
Thanks for that catch.
Still, 9 pounds of lift, given the amount of helium we've got in the tank doesn't sound like it'll work.
If we support that much cable w/ the balloon, how much of a lift budget do we have left for a camera, additional string, etc.
Do you have a number for the amount of lift we had last time?
From: list-bounces at islandlabs.org on behalf of john abella
Sent: Thu 3/18/2010 8:33 PM
To: Island Labs main mailing list
Subject: Re: [islandlabs] ballon at ICON real time video: Weight of ethernet
Clearly none of us clicked Bill's link. He transposed a number.
It's 27lbs for 1000 ft, not 72. So the guys saying 9-ish lbs for 300 ft are right on.
On Thu, Mar 18, 2010 at 10:07 AM, Burns, William <burns at cshl.edu> wrote:
72 pounds per 1000 feet of ethernet cable:
so... 300 feet would be 21 pounds.
> -----Original Message-----
> From: list-bounces at islandlabs.org
> [mailto:list-bounces at islandlabs.org] On Behalf Of Brian Fix
> Sent: Wednesday, March 17, 2010 6:37 PM
> To: Island Labs main mailing list
> Subject: [islandlabs] ballon at ICON real time video
> Just an idea that came to mind.. ive been pondering how to
> put a big ballon above icon for the whole weekend, that could
> supply a HD realtime video stream.
> I googled Power over Ethernet, so we could fly a device for
> the entire weekend without worring about batteries. POE is
> pretty cheap ($35 bucks). The Ethernet cable could be the
> tether, the Ethernet, and the power! I think this could cut
> down the weight alot. The only other weight would be the
> computer and camera (and the servos to control the camera
> angle and zoom, ha!).
> Questions, ive come up with:
> how much does 100 yards of Ethernet weight?
> Can a balloon lift a 100 yards of ethernet, a small computer,
> a small poe device and a webcam?
> How long does one of these weather ballons keep its helium
> inside, without diffusing through the balloon?
> link to poe device:
8&cm_re=poe-_-33-127-048-_-Product <http://www.newegg.com/Product/Product.aspx?Item=N82E1683312704 8&cm_re=poe-_-33-127-048-_-Product>
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