(E)What are the main sources(来源)of green energy?(B)1. Water power uses moving water in rivers and dams(堤坝).Moving water has energy. Water power makes 16.6% of the elec-tricity we use.( D )2. Is wind power new? No, it isn't. People used wind pow er many years ago. Wi...
Our growing need for energy is one of the problems facing the world today.1 E Here are some simple ways to make a big difference when using electricity.2B Leaving televisions and computers on with the little red light showing still uses up electricity, even though they might look like they...
What Uses The Most Energy In Your Home? [INFOGRAPHIC]Home CoolingWarren Buffett
746.After two years of looking for work as a teacher, Einstein took a job as a clerk in the Swiss patent office. 寻找教师的工作岗位两年无果后,他在瑞士专利局觅得一份职员的工作。 747.While working there, out of ...
First, by breaking the material apart mechanically into small particles and then adding a lot of water until you got a kind of thick, soupy mix that the equipment could handle. But that extra step took time and required a lot of energy. ...
dedicated their time and energy to building and shaping the world we live in today, whether through their work, their families, or their community involvement. By recognizing and appreciating the significance of elderly people, we a...
Does manufacturing the "green" plastic containers use less energy than manufacturing petroleum-based containers? The jury is still out on that one. Some say it uses about the same amount, because shaping starch-based material into cup form doesn't take any less effort than shaping fossil-fuel-...
Did you know washing clothes in hot water uses more energy? If your clothes are only a bit soiled, take this chance to save energy by washing them in cold water temperatures. With innovative technology like AI Energy Mode4, you can have peace of mind knowing your laundry will be fresh an...
Waste of ResourcesIt costs a lot of money to light up homes, public places, sports and commercial places. Thenation uses millions of tons of oil and coal to produce the power needed to light the sky.Meanwhile, the environmental cost of producing this energy is another worrying issue. 1Loss...
CSP uses mirrors that reflect and gather sunlight onto fluid-filled receivers. The sunlight heats the fluid to a high temperature, generating thermal energy. This energy is used to power engines or spin turbines, which then generate electricity to power plants or supplement power grids. CSP is ...