The Wheel –8,000 BC Fire – 500,000 BC

According to archaeologists the wheel was Fire was first used by cavemen and invented by the Sumerians. It was made of early people and it changed their lives! planks of wood joined together. Later on in life It provided early men and women with the Egyptians improved it. Where would we be a means of warmth and they were able today without cars and bikes? So if they had to cook food so that they did not have never made that simple wheel than we would to eat raw food. Fire does have a bad not have these things! side because it can get out of control and cause many problems like the great fire of London. But really it has done a lot to help people.

Printing Press – 1450 Gravity – 1665 In 1450 Johannes Gutenberg Gravity or gravitational force made his first printing press. A was discovered by a man printing press is a device for evenly named Sir Issac Newton. The printing ink onto paper or cloth so pull of the force depends on that was when people could start the mass of object to how to mass produce books. So without strong the pull is. Thanks to the printing press we would never gravity we on all still on the have learnt to read books. earth!

Electricity – 1773

1. A man named Benjamin Franklin discovered electricity. Electricity is a form of energy which is caused by electrons or protons which make a current to power objects. Many more scientists and inventors tried to use the power of electricity to make a light but that did not happen until 1879. So if Benjamin Franklin had not discovered electricity than we would not be able to watch TV or power our computers.

Mechanical computer – 1822

A man named Charles Babbage made the first mechanical Solar Energy – 1839

computer. A mechanical computer is computer made with levers and Solar power is the conversion of gears rather than electronic light into electricity. It has

components. He never finished his helped people to cut down on first computer due to funding and the amount of normal electricity he died before the second one was they use because they have their

completed so his son Henry Babbage, own source of electricity which is

finished it for him. Mechanical eco-friendly. This is also helping computers really did help the people to stop global warming. fighting in the Second World War.

Combustion Engine – 1860

The combustion engine is an engine which burns the fuel inside the engine unlike a steam engine which burns it Antibiotics - 1870 outside the engine. So if the combustion Antibiotics have helped people in many different engine was not made than we would not have car and motorbikes. ways. They can be used to treat mild conditions such as acne or life-threatening condition. Antibiotics have saved lives and have been used to

treat many people. So where would we be without them?

Telephone - 1876

Elisha Gray and Alexander Graham Bell both independently designed devices

that could transmit speech electrically. These devices were called the “telephone”. Today phones have

improved alot and we now have mobile

phones too. This makes staying in touch with people very easy.

Light Bulb - 1879

Joseph Wilson Swan and Thomas Radio -1895 Alva Edison invented the light bulb. The radio is very like other inventions such as Soon after it was made it was in

the telephone and telegraph. It all began with many towns and cities. It meant the discovery of radio waves - electromagnetic that people could work for longer waves can transmit music, speech, pictures and in a safer way.

other data invisibly through the air. They are used in other devices like televisions, microwaves and cordless phones. We still use TV- 1923 the radio today which is really good for transmitting news when on the go and in the The TV was not invented by one person it was car. invented by lots of people. The inventors

attempted to either build a mechanical television system or to build an electronic television system. The electric TV worked better than the mechanical one because it can transmit pictures through a wire. Was the TV a good or bad invention? TV

might provide people with entertainment but do Penicillin – 1928 people just watch because they have too much free time? Penicillin was invented by Sir Alexander Fleming. Penicillin is used to treat infections caused by bacteria, such as ear infections. Penicillin has treated many infections from small ones to big ones and has helped people to get better. Space Travel – 1943

In 1943 the German V2 was the first rocket to go into space. It only

reached 100km from the Earth’s surface (the boundary to space.) Internet – 1958 The rocket was made by Wernher

The internet was invented by a Von Braun who later worked with man called Vint Cerf. The internet NASA on the rocket which went to the moon. Since 1943 many is a global computer network which provides people with a people have gone into space. variety of information and

communication facilities. People use the internet daily for different things.

DNA – 1973

James Watson and Francis Crick started to work on the structure of DNA. At that time DNA was known to be in the nucleus of every living cell. They used all the evidence from chemical x-ray to find out the size and shape of DNA. GPS – 1995 DNA effects people because we are all GPS is a Global Positioning System made out of DNA. which gives you your location, directions and time information and it works in all weathers. It helps people to know where they are and if they get lost they can find their way home.

Cloning – 1996

Doll was a cloned sheep and was the first successfully cloned mammal. Dolly was created at the Roslin Institute in Edinburgh. Cloning was a significant scientific breakthrough. So will they clone a person next?

The Gastric Breeding Frog – 2013

Scientists at Australia’s University of Newcastle have brought an extinct frog back to life from frozen tissue. The male gastric frog fertilizes the eggs which the female swallows so the babies are born in the mouth. What will they bring back next?