What is Friction?

Research Reading
LI:Reading for meaning and understanding.

Friction is actually a force that appears whenever two things rub against each other. Although two objects might look smooth, microscopically, they're very rough and jagged.

Every time you go up a steep hill it feels like you are going to fall down the hill. Air resistance is a big concern of designers of cars, planes,and boats.

These designers try to reduce friction so that a car will travel across the road,a plane will fly through the air,and a boat will move through the water as easily as possible.

You can slide much faster down the water slide because water reduces friction.

Samuel Pierpont Langley

Samu l Pierpont Langley was born in Roxbury, Massachusetts on August 22, 1834. He was educated in the Boston public schools but taught himself engineering as a young adult. He was an expert in astronomy, physics, and aeronautics and contributed to the knowledge of solar phenomena. He is best known for his attempts to build the first heavier-than-air flying machine. After several years at jobs as a qualified engineer and architect, he went back to his childhood love of studying astronomy and science. He taught mathematics at the U.S. Naval Academy, became director of the Allegheny Observatory, and taught physics and astronomy at the University of Pittsburgh though he had never earned a college degree.

The first ever plane that Samuel Pierpont Langley built. It looked a bit funny but it could fly.

Amazing facts about rugby

There are 20 teams coming from others countries.

There are two goal posts.

There are 15 players in each team.

First T3 Post

I have come back from a lovely holiday for two weeks and I am feeling good and ready to start a new term. I am looking forward to the science fair this term because we get to experiment and make things. I am looking forward for the Rugby World Cup 2011 because I have tickets to see one of the games.