The basic idea of portable power is nothing new; people have always had ways of making energy on the move. Evenprehistoric humans knew how to burn woodto make fire, which is another way of producing energy (heat) from chemicals (burning releases energy using achemicalreaction called combustion...
Wood, paper, and coal also contain hydrocarbons. We can turn hydrocarbons into useful energy simply by burning them. When you burn hydrocarbons in air, their molecules split apart. The carbon and hydrogen combine with oxygen from the air to make carbon dioxide gas and water, while the energy...
Tear gas canisters are generally intended for skip firing at close range or firing at a 25-30 degree arc into the air for maximum range; they are not rated for direct fire. Some styles of baton rounds that split into multiple projectiles are designed for skip fire to distrib...
Hook spanner – for the majority of older BBs Hack saw Many specialized tools such as BB thread chaser, headset race hammer and truing jigs exist. Because of the cost of these tools, they are not accessible to most amateur bike mechanics. By working or volunteering in an established workshop...
Recognized by the Tucson Weekly as the Best Indoor Venue for 9 year running, the nonprofit Rialto Theatre is the best place to see live music in Tucson, bar none.
Recognized by the Tucson Weekly as the Best Indoor Venue for 9 year running, the nonprofit Rialto Theatre is the best place to see live music in Tucson, bar none.
If you can't insulate your windows, for any reason, curtains and blinds can make a difference. Remember that the purpose of curtains is not simply to give you privacy: good curtains should trap a significant volume of air between the fabric and the window and stop it from moving; it's ...
Just imagine if you were a master wood carver, renowned the world over for the finely carved furniture you made. To carve such fine details, you'd need small, sharp, precise tools smaller than the patterns you wanted to make. If all you had were a sledgehammer and a spade, carving ...
Doing work means you have to use energy: the muscles in your body have to convert sugar and fat to make the energy you need to push the boulder. Where does this energy go? Although you use energy as you climb, your body and the boulder also gain energy—potential energy. When the ...