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2. Big-Bang Cannon - Wikipedia

   en.wikipedia.org/wiki/Big-Bang_Cannon

   A Big Bang Cannon and its box. The Big-Bang Cannon, also known as the Calcium Cannon, is an American toy cannon first manufactured in the early 20th-century. Numerous consumer fireworks injuries [1] convinced a physics professor at Lehigh University in Bethlehem, Pennsylvania to patent a "Gas Gun" in 1907, and the manufacturing of Big-Bang Cannons started in 1912, from the Gas Cannon Company.

3. Flywheel energy storage - Wikipedia

   en.wikipedia.org/wiki/Flywheel_energy_storage

   NASA G2 flywheel. Flywheel energy storage (FES) works by accelerating a rotor to a very high speed and maintaining the energy in the system as rotational energy.When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the system correspondingly results in an increase in the speed of the ...

4. Entertech - Wikipedia

   en.wikipedia.org/wiki/Entertech

   Entertech was a brand of battery-powered motorized water guns sold in the United States from 1985 to 1990 by the now-defunct LJN. [1] [2] [3] Unlike the colorful designs of many of the simple hand powered pump water guns of that time, most of the Entertech water guns were manufactured from black plastics with a matte finish to resemble real ...

5. People Are Surprised Not Everybody Are Using These 68 ... - AOL

   www.aol.com/lifestyle/people-surprised-not...

   Image credits: Vast_Sweet_1221 #8. In my car, I always keep a lighter, canned/bottled water, a change of clothes, an old (but functional) pair of shoes, and a phone charging cord.

6. Lester Allan Pelton - Wikipedia

   en.wikipedia.org/wiki/Lester_Allan_Pelton

   Pelton was watching a spinning water turbine when the key holding its wheel onto its shaft slipped, causing it to become misaligned. Instead of the jet hitting the cups in their middle, the slippage made it hit near the edge; rather than the water flow being stopped, it was now deflected into a half-circle, coming out again with reversed direction.

7. Annual New London water fight has evolved from street 'mayhem ...

   www.aol.com/sports/annual-london-water-fight...

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8. Global water cycle 'spinning out of balance': UN ... - AOL

   www.aol.com/news/global-water-cycle-spinning...

   The water report is only the second such analysis done by the WMO and includes data from large river basins, including river discharge, groundwater, evaporation, soil moisture and reservoir inflow.

9. Water turbine - Wikipedia

   en.wikipedia.org/wiki/Water_turbine

   The main difference between early water turbines and water wheels is a swirl component of the water which passes energy to a spinning rotor. This additional component of motion allowed the turbine to be smaller than a water wheel of the same power. They could process more water by spinning faster and could harness much greater heads.