How to Get the Lead in Pencils

There are fourteen billion pencils which are made in the world yearly, that is enough to circle the world 62 times.  Surprisingly there is no lead in there, just a finely mixed graphit, which an Englishman mistook for lead. Some pencils are  made by hollowing out a stick of Cedar and putting the graphite into it. The English simplified this by having machines that do this today.

Tanning

Let's face it, the skin is the only organ that is constantly exposed to the outside elements. This being the case it is bound to have some exquisite issues. While itching seems healthy, to much of a good thing is not.

Itching, which is also known as puritus, starts with an external stimuli of bugs, dust or clothing fibers. This activates the bodies built in defence mechanisms. The receptors in the skin become irritated. This irritation travels to the spinal chord. Then it travels up to the Cerebral Cortex. The pain signals generated by these itches result in scratching to remove the irritant. Scatches actually cause pain and distact the body.

The skin is the largest and most sensitive muscle of the body. People with defeincies have been known to scatch until the bled.

Coasta Rican Rainforest

This rainforest is part of the Amazon Rainforest. This rainforest is tropical, and has a diverse landscape and animal population. Forests, beaches, rivers, beaches and mountains make up this countries landscape.

It also has volcanoes, four of which are still active. Paos volcano is the largest one in the world. It produces dark fertile soil, which grows much of the sugar cane, bananas and coffee; which is exported throughout the world.

The country is smaller then West Virginia. Even though its size; it is home to six percent of the worlds animal and plant species. More than 50,000 butterflies and moths, 1000 kinds of orchids and 208 species of mammals.

One mammal species; the sloth live in trees. They eat leaves, which aren't that nutritious, but theory stomach is able to digest, and obtain the nutrients from them. They travel on treetops, which combined with their pass, takes them 4 hours to travel a mile.

The sloth hangs from the cecropia tree, which is common in the rainforest. Its big leaves grow at the ends of its branches, so it has lots of openings.

It has a defense against insects so they wouldn't eat there leaves. It houses and feeds ants which chase the insects away.

Costa Rica has 50 types of hummingbirds. The hummingbirds wings flap 80 times per second. They can fly both forward and backward. Their heartbeat is at least 1260 times per minute. They eat eight times their body wright daily. Hummingbirds carry mites which lay eggs in flowers.