Anticlockwise Clock
 Pix-Ray Graph
 Doorbell
 Engineer With Sweet Tooth Discovers Instant Cooking!
 Recycling Aluminium
 How do Fans Work?
 Getting Sauce out of the Bottle
 Narrowing Stream
 Blowing Out
 Ice is Lighter
 S.N. Bose
 Fruits and Noughts
 Archimedes' War machines
 Quicksand
 The Farthest Man-Made Object
 Panama’s Great Waterway
 What is a Whiplash Injury?
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 Light and Life
 The International Year of Light
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 Airborne!
 Chasing a Comet
 The Conquest Of Polio
 Bombay Blood group
 Thumba in Kerala
 Science Notes
 Archimedes Screw Pump
 Acid Rain
 Rising Water
 What's pushing it up?
 Space Exploration - 35
 Space Exploration - 34
 Heavy Finger
 Space Exploration - 33
 Space Exploration - 32
 The Flame Stays Down
 Space Exploration - 31
 Space Exploration - 30
 Candle in the Wind
 Space Exploration - 29
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 Air Pressure
 Space Exploration - 27
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 Bubbling Egg
 Space Exploration - 18
 Marbles in Glass
 Experiment Wth A Potato
 Worm Light, Glows Bright!
 Plastic in, not out!
 Car like you!
 Tenant Happy, Landlord Happy!
  The Rusting Nail
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 The Friendly Paper Producer!
 Doctor Potato!
 Sweet Power!
 No Hope For Dope!
 Kill A Bug With A Bug!
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 Leaping Grains
 The Punch Back Plant Pack!
 The Knowall Atlas
 Futuristic Plastic
 Bloodsuckers Doom
 Sleeping enough?
 Space Exploration - 17
 Space Exploration - 16
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 Space Exploration—7
 Space Exploration — 6
 Space Exploration - 5
 Space Exploration - 4
 Space Exploration- 3
 Liver Spots
 Space Exploration - 2
 Inflating Balloon
 Space Exploration: 1
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Space Exploration - 13
First Man In Space

While the United States conducted its space programme in the full glare of international publicity, the Soviet Union adopted a policy of secrecy.
Alan Shepherd had been selected by NASA to be the first of the ‘Mercury Seven’ to travel in space and Shepherd himself wholly expected to become the world’s first spaceman. But three days after the ‘Mercury Seven’ had been introduced to the American public, Shepherd was woken up in the middle of the night by a phone call from a NASA official.
“They’ve done it,” gasped the official. “The Russians have put a man into orbit!”
It was 12 April, 1961.
The man who had been put into orbit was 27-year-old Yuri Gagarin, a Soviet air force pilot. He was rocketed into orbit in the spacecraft Vostok-1 from Baikonur Cosmodrome in Kazakhstan. Vostok which means “East’ in Russian, was a sphere 2.3 metres in diameter. The cosmonaut sat in an ejector seat, which he could use to parachute to safety in the event of an emergency during the launch. Gagarin had no control of the craft during the mission. The effect of weightlessness had been tested only on dogs and Soviet scientists did not know how weightlessness would affect a man. They did not want to take any chances so Vostok was controlled entirely from the ground. A key was available in a sealed envelope in case it became necessary for Gagarin to take over controls in an emergency. Gagarin however performed many functions like eating, drinking, and writing while in orbit, and showed that the state of weightlessness was neither life threatening nor incapacitating.
Yuri Gagarin made just one orbit of Earth, and his entire flight from lift-off to touchdown lasted 108 minutes, but it created a sensation as great as the launch of the first artificial satellite, Sputnik, in 1957.


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