IMPORTANT INVENTION & DISCOVERIES
if you are preparing for any competitive exams so you need to take a look on this series. There are the most expected question that you might face in your upcoming exams
30 most common inventions and discoveries frequently
asked in exams
pdf at the bottom
1. Computer
Charles Babbage 1822
2. Television
John logie baird (in 1962)
3. Car
Karl Benz (1885)
4.
Telephone
Alexander Graham Bell (1876)
5.
Bulb
Thomas Alva Edison (1876)
6.
Calculator
Blaise Pascal (1642)
7.
Dynamite
Alfred Nobel (1862)
8.
Radio
Gugliemo Marconu (1901)
9.
Air Conditioner
Willis Carrier (1902)
10.
Bicycle
Kirkpatrick Macmillan (1839)
11.
Vaccine
Edward Jenner
12.
DNA
Watson & Crick
13.
Blood Groups
Karl Landsteiner
14.
X Rays
William Roentgen
15.
Radioactivity
Henry Becquerel
16.
Electron
J J Thompson
17.
Proton
Rutherford
18.
Neutron
Chadwick
19.
Electric Iron
Henry Seeley
20.
Radium
Marie and Pierre Curie
21.
Vulcanized Rubber
Charles Goodyear
22.
Waterproof Rubber
Machintosh
23.
Revolver
Samuel Colt
24.
Printing Press
Gutenberg
25.
Theory of Evolution
Charles Darwin
26.
Lift (Elevator)
Elisha Otis
27.
Fountain Pen
Waterman
28.
Safety pin
Walter Hunt
29.
Typewriter
Christopher Scholes
30.
Telescope
Hans Lippershey
Click here to Download Pdf
DOWNLOAD
Also read
bio-graph of Iqbal
bio-graph of Iqbal
keep it up
ReplyDeleteThank you so much for this valuable content
ReplyDeletekeep sharing this type of content , i really appricate your hardwork
aprt from this if someone is looking for the best training institute in delhi for any of given below course
you can choose High Technologies Solutions Institute
Best Training Institute for AutoCAD Training Course in Delhi, NCR
Best Training Institute for SAP Training Course in Delhi, NCR
Best Training Institute for Tally Training Course in Delhi, NCR
Best Training Institute for python Training Course in Delhi, NCR
Best Training Institute for JAVA Training Course in Delhi, NCR
Best Training Institute for Advance Excel Training Course in Delhi, NCR