How long is a kangaroo baby when it is born?
The young kangaroo, or joey, is born alive at a very immature stage when it is only about 2 cm long and weighs less than a gram. Immediately after birth it crawls up the mother's body and enters the pouch. The baby attaches its mouth to one of four teats, which then enlarges to hold the young animal in place.
How many steps does it take to walk 1 mile?
Generally speaking you can count on 2,000 steps will equal one mile. But, depending upon your length of stride it might take 2,500 steps to equal 1 mile. 9 holes of golf (no cart but walking) equals about 8,000 steps. Most people will get about 1,200 steps in about 10 minutes.
How many hairs does an average human have?
This total takes into account not only head hair but also all the hair on various other parts of the body. In fact, the vast majority of hairs are not on our heads. People generally tend to have about 100,000 hairs on their heads, leaving 4.9 million hairs for the rest of the body.
Is combustion exothermic or endothermic?
Combustion reactions are almost always exothermic (i.e., they give off heat). For example when wood burns, it must do so in the presence of O2 and a lot of heat is produced: Wood as well as many common items that combust are organic (i.e., they are made up of carbon, hydrogen and oxygen).
How many feet per second does a bullet go?
Firearms expert Julian Hatcher studied falling bullets in the 1920s and calculated that .30 caliber rounds reach terminal velocities of 300 feet per second (90 m/s). A bullet traveling at only 200 feet per second (61 m/s) to 330 feet per second (100 m/s) can penetrate human skin.
Who was the first person to go to space?
First man in space. On 12 April 1961 Russian cosmonaut Yuri Gagarin became the first human in space when he orbited the Earth once during a 108 minute flight. In 1960 Gagarin, a fighter pilot, was shortlisted for the Vostok 1 programme, which built on the success of Sputnik 1 just three years earlier.
Do cashews actually come from a fruit?
The top end of the cashew apple is attached to the stem that comes off the tree. The bottom end of the cashew apple attaches to the cashew nut, which is encased in a shell. In botanical terms, the cashew apple is an accessory fruit that grows on the cashew seed (which is the nut).
Are peanuts a nut?
Peanut Facts. While “nut” is in their name, peanuts are in fact legumes. Peanuts actually grow underground, as opposed to nuts like walnuts, almonds, etc. that grow on trees (and are sometimes referred to as "tree nuts"
. Peanuts, along with beans and peas, belong to the single plant family, Leguminosae.
How was oxygen discovered?
Discovery of Oxygen. Oxygen was discovered in 1774 by Joseph Priestley in England and two years earlier, but unpublished, by Carl W. Scheele in Sweden. Scheele heated several compounds including potassium nitrate, manganese oxide, and mercury oxide and found they released a gas which enhanced combustion.
What state is the source of the Mississippi River?
The source of the Upper Mississippi branch is traditionally accepted as Lake Itasca, 1,475 feet (450 m) above sea level in Itasca State Park in Clearwater County, Minnesota.