Group items tagged

Guide Dogs for the Blind provides K-9 Buddies

pets for blind and visually impaired children

pets and prepare children for future use and care of a mobility dog.

end of the spectrum are the reds and oranges. These gradually shade into yellow, green, blue, indigo and violet. The colors have different wavelengths, frequencies, and energies. Violet has the shortest wavelength in the visible spectrum. That means it has the highest frequency and energy. Red has the longest wavelength, and lowest frequency and energy. LIGHT IN THE AIR Light travels through space in a straight line as long as nothing disturbs it. As light moves through the atmosphere, it continues to go straight until it bumps into a bit of dust or a gas molecule. Then what happens to the light depends on its wave length and the size of the thing it hits. Dust particles and water droplets are much larger than the wavelength of visible light. When light hits these large particles, it gets reflected, or bounced off, in different directions. The different colors of light are all reflected by the particle in the same way. The reflected light appears white because it still contains all of the same colors. Gas molecules are smaller than the wavelength of visible light. If light bumps into them, it acts differently. When light hits a gas molecule, some of it may get absorbed. After awhile, the molecule radiates (releases, or gives off) the light in a different direction. The color that is radiated is the same color that was absorbed. The different colors of light are affected differently. All of the co

d after Lord John Rayleigh, an English physicist, who first described it in the 1870's.) WHY IS THE SKY BLUE? The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by t

As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.

Many scientists have specified various reasons for global warming effects on the environment and for human life. It is not easy to point one reason for global warming effects, but recently you might have saw many change in global climate. Global warming effects have various consequences such as glacier volume decreasing, rise in sea levels, shrinkage of Arctic and altered fashion of doing agriculture have been named as direct effects on global warming. Secondary global warming effects are extreme weather events, increase in tropical diseases, changes in the timing of seasonal patterns in ecosystems, and drastic economic impact.

Before many times back, many scientist and researchers were hopping that a positive effect of global warming would be increased agricultural yields(outputs), because of the role of carbon dioxide in photosynthesis which might behave in positive manner, but now it resulting in destructions of several crops. In the area of Iceland, due the rising temperatures which have made possible the widespread sowing of barley easily in an effective manner, which was not possible twenty years from now. The net result is expected to be that 33% less maize—the country's staple crop—will be grown. The reduction in rainfall has turned millions of land into deserts.

Insurance industry has been affected very badly with the risk of insurance; the number of major natural disasters has been increased to 300% since 1960s, and insured losses increased fifteenfold in real terms. According to Choi and Fisher (2003) each 1% increase in annual precipitation could enlarge catastrophe loss by as much as 2.8%.

Pollution at the nation’s 3,500 ocean, lake and bay beaches resulted in more than 25,000 closing or swimming advisory days last year, 28 percent more than in 2005, and the highest number in the 17 years that records have been kept, according to a new federal report released Tuesday.

he prime culprit was storm water runoff

Another 1,300 days were attributed to sewage spills and overflows.

basic laws of physics dictate that energy is conserved and can only be changed from one form to another or into matter.

Fuel, on the other hand, is the accumulation of matter and therefore represents a store of energy.

released in the form of heat when the fuel is burned in chemical or nuclear reactions

Whenever we present a state of affairs which is known to be reinforcing at a given drive, we must suppose that conditioning takes place

The bird happens to be executing some response as the hopper appears; as a result it tends to repeat this response.

effect appears to depend upon the rate of reinforcement

Virtually overnight, Chongqing has become the largest city not only in China but in the world. Territory to the north and west has been annexed, so that the population now encompasses 13.89 million people.[*]

Chongqing, as a result, is a swirling cauldron of noise and smoke as buzzing motorbikes and overloaded buses strain to climb its steep hills.

economic laboratory

One of the keys to getting the most out of your training program is to work outside of your comfort zone.

I can't argue that you're doing something to stay in shape and work on your game. But you're not really pushing yourself, and you shouldn't really expect those types of workouts to pay huge dividends.

Change your approach. Push yourself harder than you normally do, and you'll start to see results. Instead of shooting 30 or 40 random, lazy jump shots, create a plan for yourself. Shoot from 4 or 5 spots on the floor until you've made 30 or 40 shots from each spot (or some number that you set as a goal for yourself). Get in the triple-threat position, head-fake, take a quick dribble to one side or the other, get good lift on your shot (really getting off the ground), and concentrate on your follow-through. Push yourself to move quicker than you normally do, and to jump higher than you normally do.

British animal lovers would rather spend quality time with their pets at the end of a busy day than with their human pals, suggests the results of this year's Pet Census, a national survey carried out annually on behalf of The Blue Cross. 

Officials have said the algae is the result of a hot spell after heavy rain, but environmentalists said such blooms are largely due to sewage and agricultural pollutant run-off.

"It's not clean, but two years ago it was much worse, you would see bags and things floating in. Now you're not seeing bags," she said.

Canadian coach Dave Hughes said the water quality has improved a lot, but there are still spots where sailors track through what smell like sewage.