Isaac Newton, G' forces, Concorde plane verse Cargo plane and The Bends

Isaac Newton

Isaac Newton wrote three laws of motion in 1686, and presented them in "Principia Mathematica Philosophiae Naturalis" . His first law states that every object will remain at rest or in uniform motion and in a straight line unless compelled to change it's state by the action of an external force.

Isaac Newton's first law of motion, Inertia: An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Isaac Newton's second law of motion: Acceleration is produced when a force acts on a mass. The greater the mass the greater the amount of force needed.

Isaac Newton's third law of motion: For every action, there is an equal and opposite reaction.

Isaac Newton was born on the 4th of January in 1643 in Woolsthorpe-by-Colsterworth in the United Kingdom.

Isaac Newton came up with the idea that everything that goes up, must come down. (Basically everything comes down to Earths surface)

G' Forces

G-force stands for either the force of gravity on a particular extra-terrestrial body, or the force o acceleration anywhere. It is measured in g's, where 1 g is equal to the force of gravity at the Earth's surface, which is 9.8 meters per second, but in space, astronauts experience unusually high or low G' forces.

The G' force of an object is its acceleration relative to free fall. This G' force can be seen on roller coasters and other amusement park rides. When the coaster goes down a steep drop or hill, you are pushed back into your seat because of G' force.

Concorde vs Cargo planes

So what is the difference between a Concorde plane and a

 Cargo plane? Why is the Concorde so fast? Here are the answers.

• The Concorde is the only commercial passenger plane that travels faster then the speed of sound. Other passenger planes do not
• The Concorde plane has a special pointed cone nose to break through sound barriers
• Almost any commercial aircraft's can break sound barriers with a simple dive. Easy. But the Concorde was designed to break sound barriers with out damaging itself.
• The engines were designed for high speeds. At low speeds, the Concorde's engine would be extremely inefficient, burning up to two tonnes of fuel just taxiing on the run way.

The Bends

The bends is a painful condition that occurs in scuba divers when they ascend too quickly, or in aviators who fly at high altitudes. Also called decompression sickness, the bends results when bubbles from dissolved gases within the blood or tissue because of rapidly decreasing pressure.

The bends can cause excruciating pain, and can even be lethal.