Electricity powers our world and our bodies. Harnessing its energy is both the domain of imagined sorcery and humdrum, everyday life -- from Emperor Palpatine toasting Luke Skywalker, to the simple act of ejecting the "Star Wars" disc from your PC. Despite our familiarity with its effects, ...
an unemployed Brooklyn man who missed a job interview Tuesday for the best of reasons: He was saving the life of a 9-month-old boy who was blown into the path of an oncoming subway train by a high wind.
Moving electrons have energy. As the electrons move from one point to another, they can do work. In an incandescent light bulb, for example, the energy of the electrons is used to create heat, and the heat in turn creates light. In an electric motor, the energy in the electrons creates...
Matter, as you probably know, is composed of atoms. Break something down to small enough pieces and you wind up with a nucleus orbited by one or more electrons, each with a negative charge. In many materials, the electrons are tightly bound to the atoms. Wood, glass, plastic, ceramic,...
One is to plant more trees to absorb (吸收) the emitted (排放的)CO2 . The other is to stop C O2 emissions altogether by using non-fossil(非化石)fuels. Examples of these fuels include electricity and wind energy. Over 20 countries and regions have carbon neutrality goals. Most of them ...
and was soon used for kites. What makes a kite fly? A kite is pushed up into the air by the wind. Trying flying a kite on a still day, it won’t get very high before it drops back to the ground. When the kite is flying there are several forces at work. The force from the ...
And although it may not seem like it now, this is temporary, and many people around the world are going through the same thing. There will be more answers and resources to come as kids go back to school, and people return to their jobs. For now, it's OK to focus on remaining healt...
This topic has less to do with family law and more to do with money, negotiation, and doing what’s best for your kids. There is more than meets the eye on this issue and in the majority of cases, this subject is much too complex for you to try to resolve on your own. ...
The European nation’s energy revolution has made it a leader in replacing nukes and fossil fuels with wind and solar technology.
Making a classic pinwheel is a wonderful way to learn all about the wind. We can feel the wind on our skin, but when we see how it can cause objects to spin or move, we can gain a real understanding of the power that wind can have. ...