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"I do not fear computers. I fear the lack of them."

Physics

Which is the second largest planet in our solar system?»
The biggest planet in the Solar System is Jupiter. But the title for the ...
What is the future of the sun?»
The Sun won’t last forever. Just like other stars in the Universe, the Sun was born and ...
Are we alone in the Universe?»
It is one of the great unanswered questions. Some scientists think it is very likely ...
Can age be different on other planets?»
Did you know that you are a different age on each planet? This is because a year is the ...
Who landed a spacecraft on a comet?»
The spacecraft Rosetta and its lander Philae travelled for ten years across the Solar ...

Chemistry

HOW DO VACCINATIONS WORK? »
In 1796, an English doctor called Edward Jenner (1749-1823) gave the first vaccination. He ...
HOW ARE NEW DRUGS DEVELOPED? »
Research chemists examine different chemicals to find out how they react with other ...
WHAT CAUSES ILLNESS? »
Understanding the cause of an illness can often help a doctor to bring a patient back to ...
WHEN WAS ANAESTHESIA FIRST USED? »
Anaesthesia prevents pain signals from being received by the brain, so that the pain is not ...
WHAT WAS THE EARLIEST OPERATION? »
Archaeologists have found skulls, dating from at least 10,000 years ago, that have holes ...

Biology

Which two types of photoreceptors retina contains?»
There are two types of photoreceptors in the human ...
What is micro sleep?»
Microsleep refers to periods of sleep that last from a few to several seconds. People ...
When an eye donor passes away, within how many hours should the eyes be removed?»
Eye donors could be of any age group or sex. People who use spectacles, diabetics, and ...
When a person has jaundice, what colour does the skin and the white of the eye usually become?»
Jaundice is a condition in which the skin, sclera (whites of the eyes) and mucous ...
How many eyes does spider usually have?»
Jumping spiders are active hunters, like tiny lions chasing down their prey (bugs). ...