User:Adil4lyf

FRICTION Introduction What is friction?friction is a force that only reacts when two objects rub together e.g a car driving down the road friction is reacting because if two objects rub together this causes friction.

AIR RESISTANCE This links to air resistance air resistance also slows things down e.g a man whith a parachute jumps from an airoplane the parachute slows down the bigger the parachute the slower you fall because it traps more air.
WATER RESISTANCE Water resistance relates to friction and air resistance because this also slows you down e.g if your swimming water resistance will only slow you down the faster you swim more the water resistance becomes.
Extra info Air and water resistance are types of frioction and if you think his is boring nor usefull your wrong because if you had a choice a life with or without friction and you chose without you woud've died e.g a bike without brakes and you rode it you woud've crashed into a van full of petrol or jump out of an airoplane you woud've fallen down straight and broken some bones or when swimming crashed into something realy sharp and when you swim whithout water resistance you could get out of control

By Adil BEWARE!

SIR FRANCIS DRAKE Francis Drake was born in Tavistock, Devon in around 1540 and went to sea at an early age. In 1567, Drake made one of the first English slaving voyages as part of a fleet led by his cousin John Hawkins, bringing African slaves to work in the 'New World'. All but two ships of the expedition were lost when attacked by a Spanish squadron. The Spanish became a lifelong enemy for Drake and they in turn considered him a pirate.

In 1570 and 1571, Drake made two profitable trading voyages to the West Indies. In 1572, he commanded two vessels in a marauding expedition against Spanish ports in the Caribbean. He saw the Pacific Ocean and captured the port of Nombre de Dios on the Isthmus of Panama. He returned to England with a cargo of Spanish treasure and a reputation as a brilliant privateer. In 1577, Drake was secretly commissioned by Elizabeth I to set off on an expedition against the Spanish colonies on the American Pacific coast. He sailed with five ships, but by the time he reached the Pacific Ocean in October 1578 only one was left, Drake's flagship the Pelican, renamed the Golden Hind. To reach the Pacific, Drake became the first Englishman to navigate the Straits of Magellan.

He travelled up the west coast of South America, plundering Spanish ports. He continued north, hoping to find a route across to the Atlantic, and sailed further up the west coast of America than any European. Unable to find a passage, he turned south and then in July 1579, west across the Pacific. His travels took him to the Moluccas, Celebes, Java and then round the Cape of Good Hope. He arrived back in England in September 1580 with a rich cargo of spices and Spanish treasure and the distinction of being the first Englishman to circumnavigate the globe. Seven months later, Elizabeth knighted him aboard the Golden Hind, to the annoyance of the king of Spain.

In 1585, Drake sailed to the West Indies and the coast of Florida where he sacked and plundered Spanish cities. On his return voyage, he picked up the unsuccessful colonists of Roanoke Island off the coast of the Carolinas, which was the first English colony in the New World. In 1587, war with Spain was imminent and Drake entered the port of Cadiz and destroyed 30 of the ships the Spanish were assembling against the British. In 1588, he was a vice admiral in the fleet that defeated the Armada. Drake's last expedition, with John Hawkins, was to the West Indies. The Spanish were prepared for him this time, and the venture was a disaster. Drake died on 28 January 1596 of dysentery off the coast of Portobelo, Panama. Hawkins died at the same time, and their bodies were buried at sea. SKELETON The human skeleton consists of both fused and individual bones supported and supplemented by ligaments, tendons, muscles and cartilage. It serves as a scaffold which supports organs, anchors muscles, and protects organs such as the brain, lungs, heart and spinal cord. Although the teeth do not consist of tissue commonly found in other bones, the teeth are considered bones and are a member of the skeletal system. The biggest bone in the body is the femur in the upper leg, and the smallest is the stapes bone in the middle ear. In an adult, the skeleton comprises around 14% of the total body weight,[3] and half of this weight is water.

Fused bones include those of the pelvis and the cranium. Not all bones are interconnected directly: There are three bones in each middle ear called the ossicles that articulate only with each other. The hyoid bone, which is located in the neck and serves as the point of attachment for the tongue, does not articulate with any other bones in the body, being supported by muscles and ligaments.

There are 206 bones in the adult human skeleton, although this number depends on whether the pelvic bones (the os innominatum on each side) are counted as one or three bones on each side (ilium, ischium, and pubis), whether the coccyx or tail bone is counted as one or four separate bones, and does not count the variable wormian bones between skull sutures. Similarly, the sacrum is usually counted as a single bone, rather than five fused vertebrae. There is also a variable number of small sesamoid bones, commonly found in tendons. The patella or kneecap on each side is an example of a larger sesamoid bone. The patellae are counted in the total, as they are constant. The number of bones varies between individuals and with age - newborn babies have over 270 bones some of which fuse together. These bones are organized into a longitudinal axis, the axial skeleton, to which the appendicular skeleton is attached.

The human skeleton takes 20 years before it is fully developed. In many animals, the skeleton bones contain marrow, which produces blood cells.

Much of the human skeleton maintains the ancient segmental pattern present in all vertebrates (mammals, birds, fish, reptiles and amphibians) with basic units being repeated. This segmental pattern is particularly evident in the vertebral column and in the ribcage.

There exist several general differences between the male and female skeletons. The male skeleton, for example, is generally larger and heavier than the female skeleton. In the female skeleton, the bones of the skull are generally less angular. The female skeleton also has wider and shorter breastbone and slimmer wrists. There exist significant differences between the male and female pelvis which are related to the female's pregnancy and childbirth capabilities. The female pelvis is wider and shallower than the male pelvis. Female pelvises also have an enlarged pelvic outlet and a wider and more circular pelvic inlet. The angle between the pubic bones is known to be sharper in males, which results in a more circular, narrower, and near heart-shaped pelvis. ADJECTIVAL FRASES old,rotten trees/loosened,brown trees deep,white snow dim,grey sky icy,frosty water weak,unbright sun I passed,lossened,brown