2. INTERNET
• The Internet is a vast network that
connects computers all over the world. Through
the Internet, people can share information and
communicate from anywhere with an Internet
connection.The Internet consists of technologies
developed by different individuals and
organizations. Important figures include Robert W.
Taylor, who led the development of
the ARPANET (an early prototype of the Internet),
and Vinton Cerf and Robert Kahn, who developed
the Transmission Control Protocol/Internet
Protocol (TCP/IP) technologies.
3. PENICILLIN
• Penicillin is the oldest and one of the
most commonly used groups of
antibiotics at present. They are derived
from the mold/fungi Penicillium.
Penicillin can be divided into two
groups, namely natural and
semisynthetic penicillins. Natural
penicillins are produced from the
fermentation of the fungus Penicillium
chrysogenum. 1928 to 1929. In 1928 Dr
Alexander Fleming returned from a
holiday to find mould growing on a Petri
dish of Staphylococcus bacteria.
Pe
4. LIGHT BULB
• In 1802, Humphry Davy invented the
first electric light bulb. He experimented
with electricity and invented an electric
battery. When he connected wires to
his battery and a piece of carbon, the
carbon glowed, producing light. His
invention was known as the Electric Arc
lamp. And while it produced light, it
didn’t produce it for long and was much
too bright for practical use.
5. INTERNAL
COMBUSTION
ENGINE
• As early as 1863, Belgian
inventor Étienne Lenoir had
driven his “hippomobile” the
nine kilometres from Paris to
Joinville-le-Pont and back. It
was powered by Lenoir’s own
gas engine and fuelled by a
turpentine derivative - thus
earning it the distinction of the
first vehicle with an internal
combustion engine.
6. TELEPHONE
• It was at this time, 1876–1877, that a new
invention called the telephone emerged. It is not
easy to determine who the inventor was. Both
Alexander Graham Bell and Elisha Gray
submitted independent patent applications
concerning telephones to the patent office in
Washington on February 14, 1876.
7. COMPASS
• The First compass was invented
in China during the Han Dynasty
between the 2nd century BC and
1st century AD, (we don’t know
precisely when). At first, it was used
for divination, fortune-telling and
geomancy, for finding precious
gems and in Feng Shui but in time
people discovered that it can be
used for navigation and orientation.
8. COMPUTER
Charles Babbage, an English
polymath, is often thought of as
"the man who invented
computers". From 1822 until his
death in 1871, he designed 3
computers, but never actually
constructed any of them, due to
lack of funding.
9. VACCINES
• Edward Jenner is considered
the founder of vaccinology in the
West in 1796, after he inoculated
a 13 year-old-boy with vaccinia
virus (cowpox), and
demonstrated immunity to
smallpox. In 1798, the first
smallpox vaccine was
developed.
10. TELESCOPES
While there is evidence that the
principals of telescopes were known
in the late 16th century, the first
telescopes were created in the
Netherlands in 1608. Spectacle
makers Hans Lippershey &
Zacharias Janssen and Jacob
Metius independently created
telescopes.
11. ELECTRICITY
• Benjamin Franklin is given the
credit for discovering electricity.
In the year 1752, Benjamin
Franklin conducted an
experiment using a kite and key
on a rainy day. He wanted to
demonstrate the relationship
between lightning and
electricity.
