Thursday, July 4, 2013

WHAT IS THE FASTEST ANIMAL

cheetah


Cheetah is the fastest with a maximum speed of 112–120 km/h, Cheetah is a large feline  
they follow under a family of Cats, they are mammals and they are Carnivore   

Before unleashing their speed, cheetahs use exceptionally keen eyesight to scan their grassland environment for signs of prey especially antelope and hares. This big cat is a daylight hunter that benefits from stealthy movement and a distinctive spotted coat that allows it to blend easily into high, dry grasses.

The cheetah has unusually low genetic variability. This is accompanied by a very low sperm count, motility, and deformed flagella. Skin grafts between unrelated cheetahs illustrate the former point, in that there is no rejection of the donor skin

The cheetah's chest is deep and its waist is narrow. The coarse, short fur of the cheetah is tan with round black spots measuring from 2 to 3 cm (0.79 to 1.2 in) across, 

WHY ARE PLANTS GREEN



Plants are green because they have a substance called chlorophyll in them. Chlorophyll absorbs wavelengths of light with wavelengths around 450nm and again around 650nm. In other words it absorbs reds and blues. The only light left to reflect off the plant and back to your eye is green. This is why plants appear green.

But since they appears green—bouncing back green and yellow light waves—it means it's not 100 percent efficient at absorbing all of the sun's rays.

Plants get their energy to grow through a process called photosynthesis.  Large numbers of chlorophyll molecules acts as the antenna that actually harvest sunlight and start to convert it in to a useful form. Is where the absorbent properties of the chlorophyll molecule come into play.

WHY IS THE SKY BLUE


The light from the Sun looks white. But it is really made up of all the colors of the rainbow.
A prism is a specially shaped crystal. When white light shines through a prism, the light is separated into all its colors

Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

The color of an object changes depending on the colors contained in the light source; for example, red paint, viewed under blue light, looks black. Isaac Newton demonstrated with a prism that the white light of the sun contains all colors of the visible spectrum, so all colors are possible in sunlight.

WINDOWS OF GOD



Windows of god is situated on Drakensberg escarpment in Mpumalanga Province in South Africa, Just one look down and you will begin to understand why it is called "God's Window".  With magnificent views, canyons, rock formations and waterfalls.

Wonderful view is about 1,800 m north of God’s window. At an altitude of 1,730m this is the highest viewpoint in the area. No walking necessary as the viewpoint is right next to the road with an angle of depression you can see it all 

There are also beautiful waterfalls in the area the Lisbon Falls is the highest waterfall in the area. For an outdoor adventure: Mpumalanga is the ideal place for a South African outdoor adventure vacation. This is one of the most wonderful places in the world. It is a must see. 

WHERE IS THE EQUATOR



An equator is an imaginary line around the middle of a planet.
the equator is the longest line of latitude on the Earth (the line where the Earth is widest in an east-west direction)

The equator is located at zero degrees latitude. The equator runs through Indonesia, Ecuador, northern Brazil, the Democratic Republic of the Congo, and Kenya, among other countries

The Earth's diameter at the Equator is about 12,756 kilometers (7,926 miles). At the poles, the diameter is about 12,714 kilometers (7,900 miles). The Earth's equatorial bulge is about 43 kilometers (27 miles).