Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Thursday, September 10, 2009

Isaac Newton



Albert Einstein


Louis Pasteur



Wednesday, August 6, 2008

Wonderful Graphics







Digital Art






Saturday, August 2, 2008

Different Kinds Of Spider










Thursday, July 31, 2008

Amazing Food Carving










Monday, June 9, 2008

Termites


Termites live in colonies (groups) with as many as several million members.Termites, sometimes incorrectly called "white ants", are a group of social insects usually classified at the taxonomic rank of order Isoptera .As truly social animals, they are termed eusocial along with the ants and some bees and wasps. Termites mostly feed on dead plant material, generally in the form of wood, leaf litter, soil, or animal dung, and about 10% of the estimated 4,000 species are economically significant as pests that can cause serious structural damage to buildings, crops or plantation forests. Termites are major detrivores, particularly in the subtropical and tropical regions, and their recycling of wood and other plant matter is of considerable ecological importance.
A large Termite Mound in Australia:

Termites build nests to house their colonies. Nests are commonly located in larger timber or in the soil in locations such as growing trees, inside fallen trees, underground, and in above-ground mounds which they construct, commonly called "anthills" in Africa and Australia.

Cricket(Insect)

  • Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Suborder: Ensifera
Superfamily: Grylloidea
Family: Gryllidae


Crickets belong to the order Othoptera, which also includes Grasshoppers, they have two pairs of wings but only the back pair are used for flying,Crickets are insects known for leaping and chirping. To attract females, male crickets chirp by rubbing their front wings together.
They have somewhat flattened bodies and long antennae. There are about 900 species of crickets. They tend to be nocturnal and are often confused with grasshoppers because they have a similar body structure including jumping hind legs.
Crickets are omnivores and scavengers feeding on organic materials, as well as decaying plant material, fungi, and some seedling plants. Crickets also have been known to eat their own dead when there is no other source of food available.

Crickets mate in late summer and lay their eggs in the fall. The eggs hatch in the spring and have been estimated to number as high as 2,000 per fertile female.[citation needed] Female crickets have a long needlelike egg-laying organ (ovipositor).

Crickets are popular as a live food source for carnivorous pets like frogs, lizards, salamanders, and spiders. Feeding crickets with nutritious food in order to pass the nutrition onto animals that eat them is known as gut loading.

Crickets are also eaten by humans in some African and Asian cultures. They are often considered a delicacy.

Blue Whale-Largest Water animal




The largest creature ever known to have existed on earth is the present-day blue whale. The largest dinosaur attained a length of about 22 m and weighed about 36 tons. Today's blue whale, even larger than its ancestors, may reach a total length of 33 m and a weight of 145 tons.


This giant animal is placid and shy. On the ocean surface, its normal cruising speed is about 12 knots, but it is capable of attaining 20 knots in short bursts. The maximum reported depth reached by the species is 194 fathoms. It is capable of remaining submerged beneath the surface for 50 minutes, although 10 to 15 minutes is more typical. The life span of a blue whale is about 30 years.
The calves measure 7 m at birth and weigh about 2 tons. By the time they are a year old, the youngsters meaasure 18 m.


These enormous mammals eat tiny organisms, like plankton and krill, which they sieve through baleen. They live in pods (small groups). These gray-blue whales have 2 blowholes and a 2-14 inch (5-30 cm) thick layer of blubber.

REPRODUCTION
Blue whale breeding occurs mostly in the winter .The gestation period is about 11-12 months and the calf is born tail first.The newborn instinctively swims to the surface within 10 seconds for its first breath; it is helped by its mother, using her flippers. Within 30 minutes of its birth the baby whale can swim.Twins are extremely rare. The baby is nurtured with its mother's fat-laden milk (it is 40-50% fat) and is weaned in about 7-8 months. Calves drink 50-200 pounds (23-90 kg) of milk each day. The mother and calf may stay together for a year or longer, until the calf is about 45 feet long (13 m). Blue whales reach maturity at 10-15 years.

Saturday, June 7, 2008

Desert plant Cactus

There are many kinds of cactus plants, but most grow in deserts and other dry places. These plants have adaptations, or special features, that let them live in places where there is little water.

Imagine only having to take one big drink of water two or three times a year. That’s all the water a cactus plant needs. The cactus is made up mostly of stems and roots. Most kinds of cactus have no leaves or leaves that are very small. The cactus is made for storing water, and water can escape through leaves.

The roots of a cactus spread out close to the surface of the ground. When it rains, the roots soak up as much water as possible. Cactus plants do not grow close to one another. Each plant needs lots of room to collect water. The stem of the cactus stores the water for later use.

TYPES OF CACTUS

Prickly pear cacti:

Cholla Cacti:

Pincushion Cacti:

Hedgehog Cacti:
Barrel Cacti:

Columnar Cactus: