Featured Poll More Polls Will you be getting child benefit payments from the federal goverment? Thanks for your answer! Yes - I am signed up to receive the payments.No - I don't have kids.No - I didn't sign up for the payments
The top of the visible aurora peters out at about 2-300 km (120-200 miles), but sometimes high altitude aurora can be seen as high as 600 km (350 miles). These gaps are usually thinner than the arc thickness next to the gap, and they look like a black auroral curtain embedded in the bright auroral glow around them
POLITICO Morning Energy - POLITICO
From governors to farmers, from senators to factory workers, from entrepreneurs to the over 200,000 men and women who signed our Fuels America petition, the message is clear. After the taping, Obama will make a speech and take questions at a Democratic Senatorial Campaign Committee event at a private residence elsewhere in Manhattan
Algae Fuel In the search for alternatives to gasoline, are algae the answer? From Pond Scum to Power In this animated primer, learn why algae and other plants make oil, and how algae oil gets converted to biodiesel. The Perfect Hunter Could social intelligence be the key to hyenas' deadly hunting skills? Sexual Cannibalism Biologist Maydianne Andrade says that the gruesome mating behavior of some spiders is a lesson in evolution
Solar Panels from Wholesale Solar
California Leads the Nation In 2006, California made a major long-term commitment to solar power by passing the California Solar Initiative, a ten-year incentive program with the goal of installing 3,000 megawatts of solar panels on the equivalent of one million rooftops. Vanguard I, the first solar-powered satellite celebrated its 53rd birthday this year, setting mileage records and holding the title of being the oldest artificial satellite still in orbit
NREL: Learning - Wind Energy Basics
Wind turbines can be used as stand-alone applications, or they can be connected to a utility power grid or even combined with a photovoltaic (solar cell) system
Evidence for the Big Bang
However, as one increases the scale of interest to truly huge scales -- hundreds of millions of light-years -- this becomes a better and better approximation of reality. Once that is done, then we talk about what the theory is and what assumptions are made when describing a physical theory about how the universe operates
How Electricity Works - HowStuffWorks
More than two and a half centuries have passed since Benjamin Franklin and others proved lightning was a form of electricity, but it's still hard not to flinch when a particularly violent flash lights up the horizon. Sure, you can flee from the world of crisscrossing power lines and live your life completely off the grid, but even at the loneliest corners of the world, electricity exists
Looking back, is there anything you wish your parents had handled differently in how they raised you? Anything having to do with when or how they discussed your origin story or the level of contact you had with your surrogate? I wish my parents had acknowledged the differences between my brother and me a bit more. Before I start, I want to say that Anne gave me permission to be totally blunt and intrusive and ask the kind of questions that would normally earn me a slap in the face
How Light Works - HowStuffWorks
Does light travel as a wave, a ray or a stream of particles? Is it a single color or many colors mixed together? Does it have a frequency like sound? And what are some of the common properties of light, such as absorption, reflection, refraction and diffraction?You might think scientists know all the answers, but light continues to surprise them. That's almost 18 million times slower than normal! No one would have thought such a feat possible just a few years ago, yet this is the capricious way of light
The Energy Story - Chapter 7: Electricity Transmission System
From these substations (like in the photo to the right), electricity in different power levels is used to run factories, streetcars and mass transit, light street lights and stop lights, and is sent to your neighborhood. The voltage is eventually reduced to 220 volts for larger appliances, like stoves and clothes dryers, and 110 volts for lights, TVs and other smaller appliances
Daylight Saving Time - Saving Time, Saving Energy
Initial analysis by staff of the California Energy Commission says a similar study may not yield the same results for California because: The use of residential air conditioning is relatively low in Indiana, and the saturations are low. Because people get home from work and school and complete more errands and chores in daylight, Daylight Saving Time also seems to reduce people's exposure to various crimes, which are more common in darkness than in light
The Energy Story - Introduction
The forms of energy we will look at include: Electricity Biomass Energy - energy from plants Geothermal Energy Fossil Fuels - Coal, Oil and Natural Gas Hydro Power and Ocean Energy Nuclear Energy Solar Energy Wind Energy Transportation Energy We will also look at turbines and generators, at what electricity is, how energy is sent to users, and how we can decrease or conserve the energy we use
No comments:
Post a Comment