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VISIT THE DISH
Gifts for Geeks
Compass
$14.95
The compass was invented around 200 CE in China and pointed south. The dry compass, like this one, was invented in medieval Europe around 1300 CE.
Glows in the dark, strong steel and glass construction.
Liquifly Water Powered Rocket
$39.95
This kit is designed to demonstrate the principles of thrust, acceleration and jet propulsion. The science behind launching the LiquiFly Water-Powered Rocket is the same as any other rockets - create thrust from water and air. Bam goes the rocket!!
This kit has everything you need is in the kit. Takes approximately 2 minutes to set-up.
Try experimenting with different water levels, and varying the air pressure to test how thrust is affected. Full instructions are provided in each kit - covering safety, set-up and how to really max out your thrust.
Note: Adult supervision is required for this activity. Improper use of this device could cause injury.
Contains:
- bottle
- set of fins
- two valves - low launch valve and high launch valve
- hose
- pump optimised for use with the Liquifly kit
- detailed instructions
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