Nature Wallpaper

Paper or Plastic?
Cities in a number of Asian countries, including China, Hong Kong, India, Indonesia, Nepal, Pakistan, the Philippines, Singapore and Taiwan, are currently on the warpath against plastic shopping bags. The cities have passed local laws that ban such bags, on the basis that they clog sewers and drainage canals, cause street flooding, choke animals and are responsible for other forms of environmental damage. China and Taiwan, for example, impose heavy fines on violators. Other countries are appealing for a switch to the production and use of biodegradable bags. But this misses the point. People do not object to using biodegradable bags, and consider them a welcome return to the traditional practice of using shopping baskets and bags made from locally available materials such as jute, abaca and cloth that are less harmful to the environment.

Taste and Temperature
Some people like food or beverages hot and some like them cold. What's the difference? Can the temperature of the food we eat affect the intensity of its taste? It depends on the taste, according to a new study by Dr. Gary Pickering and colleagues from Brock University in Canada. Their work shows that changes in the temperature of foods and drinks have an effect on the intensity of sour, bitter and astringent tastes but not sweetness. Their work is published online in Springer's Chemosensory Perception journal. Humans receive tastes through sensory organs called taste buds concentrated on the top of the tongue. Taste is sensed through taste cells, which are known as taste buds. There are about 100,000 taste buds that are located on the back and front of the tongue. Others are located on the roof, sides and back of the mouth, and in the throat.

Cars That Run on Natural Gas - Alternative Fuels
Find out how an alternative fuel used all over the world may find its way into American vehicles. Natural gas is abundant, clean and already a part of our everyday livesand it may be the next big alternative fuel. In the world of alternative fuels, electric, hydrogen and even hybrid vehicles get most of the attention. Not many people are aware of another alternative automotive fuel that burns cleaner than gasoline, is found abundantly in the United States and is already in heavy use around the world: natural gas. Natural gas is by no means a new fuel; its been used to heat homes and cook food in gas stoves for more than a century. But only recently have automotive technicians begun exploring the possibility of using natural gas as an alternative to gasoline in automobiles here in the United States. When used in automobiles, natural gas comes in two forms: Compressed natural gas (CNG) Liquefied natural gas (LNG) Both forms require storage in cylinders that are often located in the trunk of the vehicle. When being burned by an engine, natural gas works very similarly to gasoline; vehicles that run on natural gas will have spark plug timing and compression optimized for that type of fuel.

Natural sinks still sopping up carbon
Earth's ecosystems keep soaking up more carbon as greenhouse gases accumulate in the atmosphere, new measurements find. The research contradicts several recent studies suggesting that "carbon sinks" have reached or passed their capacity. By looking at global measurements of atmospheric carbon dioxide, the new work calculates instead that total sinks have increased roughly in line with rising emissions.

SPRING ALLEY – Nature Wallpaper

MAGIC SPRING FOREST – Nature Wallpaper

MIDDLE OF AUTUMN – Nature Wallpaper

MISTY RAIN IN FOREST – Nature Wallpaper

MAGIC GARDEN – Nature Wallpaper

SPRING FOREST IN THE MORNING – Nature Wallpaper