Science and Technology – osnova na prezentáciu
Autor: wanna (18)
Typ práce: Ostatné
Typ práce: Ostatné
Dátum: 20.11.2020
Jazyk:
Jazyk:
Rozsah: 357 slov
Počet zobrazení: 2 090
Počet zobrazení: 2 090
Tlačení: 139
Uložení: 132
Uložení: 132
Science and Technology – osnova na prezentáciu
THEY HAVE EXISTED AS LONG AS MANKIND ITSELF
MANKIND AND A LONG WAY OF ITS EXISTENCE
In pre-historic times people ̀s lives and their needs were simple
They hunted for food
Made tools from stone, wood, horns
Used simple clothes to protect themselves from the cold
An excellent tool was the human hand
PEOPLE STARTED CHANGING THE WORLD
They started to make their life easier and more comfortable
Learnt how to use water and wind for energy and built water mills and windmills
Made a lot of explorations, discoveries, developments in astronomy, philosophy, medicine and biology
The most important invention was the printing press
SCIENTISTS
- Try to enquire knowledge of the physical world and uses different scientific instruments
- Types of scientists
inventor, engineer, physicist, chemist, astronomer, alchemist, philosopher, biologist, pharmacologist, mathematician
THE MOST FAMOUS NAMES
- HENRY FORD – invented car
- NEIL ALDEN ARMSTRONG – commander of the Apollo 11
- MICHAEL FARADAY – discovered electromagnetic induction, constructed electric dynamo (physicist, chemist)
- JAMES WATT – invented steam engine
- ALEXANDER GRAHAM BELL – invented telephone, metal detector
- A. EDISON – invented phonograph, electric bulb
- CHARLES ROBERT DARWIN – theory of natural selection
- SIR ISAAC NEWTON – theory of universal gravitation, system of measurement
- BENJAMIN FRANKLIN – lightening rod, swimfins, bifocal glasses
- SIR ALEXANDER FLEMING – discovered and isolated penicillin
INDUSTRIAL REVOLUTION
- It brought important inventions
- People started to use new materials such as iron, steel, glass, rubber, plastics
- Small manufacturing businesses changed into large factories
- Hand-made goods were replaced by machine-made products
- Mass production started and all sorts of goods became cheaper
INVENTIONS IN THE 20th CENTURY
- TV
- AIRPLANE
- COMPUTER
- MOBILE PHONE
- INTERNET
- VIDEOPHONE
WRONG INFLUENCE OF SCIENCE AND TECHNOLOGY
- NEW DRUGS
- PESTICIDES
- FERTILIEZERS
- TOXIC WASTE
- SMOG
- OZON LAYER
- ACID RAIN
- GREENHOUSE GASES
- EXHAUSTED FUMES
- AIR, WATER AND LAND POLLUTION
- POLLUTED GROUNDWATER
- CONGESTION
SCIENCE HAS BROUGHT MANY USEFUL THINGS
- Robots directed by computers do hard work
- Easier transactions – credit and phone cards
- Laser used in surgery
- Genetic engineering
- New communication forms – phone satellites, computers
- New appliances or entertainment equipment – washing machine, dishwasher, microwave oven, TV, DVD, CD players
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