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A water rocket is a type of model rocket using water as its reaction mass. The pressure vessel (the engine of the rocket) is constructed from thin plastic or other non metallic materials (usually a used plastic soft drink bottle) weighing 1,500 grams or less. The water is forced out by compressed air. It is an example of Newton's third law of motion.

Ebay 808 Keychain Camera

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Ebay 808 Keychain Camera

Post by Rocket_Scientist » Wed Oct 21, 2015 8:24 pm

There seem to be two price levels of cameras: $6 and $35.

These things change month to month, but has anybody had good luck with a lower end ebay house?

I bought 3 for $21 last year, and I was impressed. Unfortunately, I lost them in a move.

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Re: Ebay 808 Keychain Camera

Post by motorcyclepilot » Fri Oct 23, 2015 1:16 pm

I love them! I don't know what exact models I purchased but I've had great success with them, though a few 'lawn dart' landings move the lens around a bit.

I haven't mounted these yet, but I've ground tested them and they are great. They have replaceable battery and lens modules. A good value for the price:

http://www.ebay.com/itm/221810773322?_t ... EBIDX%3AIT

The picture quality with these was acceptable, but not great:

http://www.ebay.com/itm/909-Mini-HD-Cam ... 51b8a6e9dd

Good luck!

Maru Ivan Rico
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Re: Ebay 808 Keychain Camera

Post by Maru Ivan Rico » Sun Nov 08, 2015 8:28 am

I'd rather go with the Y2000/Y3000 spy cam. They may be difficult to mount, but it has;
-No timestamp
-Good quality vid
-Less size than the 808.

I recommend the Y2000 instead.

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