8th February 2016
The proboscis of a mosquito needs to be inserted into the skin to draw blood. However, the proboscis cannot do it without any tool, and so it is equipped with 47 cutting tools, similar to incisors in animals, which help the mosquito pierce the proboscis into the skin.
8th February 2016
The moon exerts a pull on you when it is directly overhead, which cancels the gravitation pull of the earth on you slightly. Therefore, you weigh slightly less that time. Your mass however remains the same.
8th February 2016
The term Ides was used for the 15th day of the months of March, May, July and October. The Ides of March was a festive day. However, the term Ides of March is best known as the date on which Julius Caesar was killed in 44 B.C.
8th February 2016
Dimples are the indentations that are made on the surface of a golf ball. The golf balls were made of gutta percha, a packing material, and the players discovered that the scratches and nicks helped the ball to fly more favourably. The gutta was therefore hammered at regular intervals to increase the consistency of the ball’s play. Soon afterwards, the Balata ball was discovered, which essentially wrapped a rubber sheath on a rubber core of the ball. The manufacturers used a mold to produce dimples on the surface. A typical dimple on a golf ball is 2-5 mm in diameter and about 0.2 mm deep. Modern golf balls have 300-450 dimples of varying sizes.
8th February 2016
Space scientists estimate that daily about 40 tons of cosmic or space dust falls on earth. They are studying this dust by collecting them using high-altitude aircraft and satellites. The origin of this dust is not clear. However, it is speculated that in space the asteroids, meteors and comets collide, thus producing dust.
8th February 2016
A chameleon is a kind of lizard that eats small insects. It uses its unique tongue to catch its prey. The tongue is coiled inside its mouth. During catching its prey, the chameleon projects its tongue out with a force which the scientists call the ballistic mechanism to capture the prey. The tongue can project up to double the size of the chameleon’s body. Sometimes the tongue may extend up to 600 per cent of its original resting size.
