A typical pencil can draw a line up to 1 mile long
It's False - The
average pencil can draw a line 35 miles long !
An otoscope is an instrument used by doctors to look
into your throat
It's False - Otoscopes are used to look
into your ears to see your ear drum.
We measure the strength of the wind using the Beaumont
Scale
It's False - it's actually the BeauFORT scale that's
used to measure the strength of the wind.
Relative to their body size, the average house fly moves more quickly
that a jet aeroplane
It's True - In one second a jet, travelling at the
speed of sound (MACH 1) covers about 100 times its length. A fly achieves
up to 300 body-lengths a second, making it 3 times faster than a jet,
relatively speaking !
Fires burn better under low gravity conditions such
as an orbiting space rocket
It's False - Fires won't
burn properly without gravity. On earth heat rises carrying
hot waste gases away from a fire and allowing fresh oxygen
into the base to keep things burning. But in space, under
microgravity conditions, there is no up or down so all
of the waste gases from a fire accumulate around the thing
that's burning, choking its air supply and putting it
out.
On a clear day, a person with good eyesight can see almost 100
miles
It's False – you can easily see 93 million miles
– which is how far away the sun is from Earth
Toothpaste contains chloride to help stengthen your teeth
It's False – toothpaste contains fluoride which protects your
teeth against decay.
Inventors have produced a digital pen that writes with real ink but
also decodes what you've written and turns it into a computer document
It's True - The Logitech io contains real ink and writes normally but
also reads what you write and stores up to 40 pages in memory which can
be transferred to a computer where software converts it into computer-readable
text. Not guaranteed for doctors use though !
There are sharks in the sea around Britain
It's True
– the basking shark is a frequent visitor to British Waters.
Owl's are one of the most intelligent birds
It's False
- Contrary to their reputation for being very wise, most
of an owl's head is taken up by its large eyes. The brain
is actually very small and these animals probably rank
amongst the least clever of all birds.