8 Jul 2013
INVENTION OF VELCRO
A dog invented velcro.
Swiss engineer George de Mestral
was out for a hunting trip with his pooch,
and noticed the annoying tendency of burrs to stick to its fur
(and his socks).
Later, looking under a microscope, Mestral observed
the tiny "hooks"
that stuck burrs to fabrics and furs.
Mestral experimented for years with a variety of textiles before arriving at the newly invented nylon—though it wasn't until two decades later that NASA's fondness for velcro popularized the tech.
INVENTION OF X-RAYS
The story of their discovery is a fascinating
one of incredible chance.
In 1895, German physicist
Wilhelm Roentgen
was performing a routine experiment involving cathode rays,
when he noticed that a piece of fluorescent cardboard was lighting up from across the room.
A thick screen had been placed between his cathode emitter and the radiated cardboard, proving that particles of light were passing through solid objects. Amazed, Roentgen quickly found that brilliant images could be produced with this incredible radiation—the first of their kind being a skeletal image of his wife's hand.
DISCOVERY OF MICROWAVE
Microwave was discovered accidentally, when a chocolate bar melted in Percy Spencer’s pocket
The fact is, Percy LeBaron Spencer of the Raytheon
The fact is, Percy LeBaron Spencer of the Raytheon
Company was walking past a radar tube
and he noticed that the chocolate bar in his pocket melted.
He then tested popcorn in front of the tube
and it quickly popped all over the room.
COCONUT WATER FOR BLOOD PLASMA
Coconut water can be used
(in emergencies) as a substitute for blood plasma.
The reason for this is that coconut water
(the water found in coconuts – not to be confused with coconut milk, which comes from the flesh of the coconut)
is sterile and has an ideal pH level.
Coconut water is liquid endosperm – it surrounds the embryo and provides nutrition.
7 Jul 2013
FACTS ABOUT DR. A.P.J. ABDUL KALAM
A.P.J. ABDUL KALAM stands for
AVUL PAKIR Jainulabdeen ABDUL KALAM.
He is an one of the great Indian scientist.
He served India as President from 2002 to 2007.
He was Awarded with a Padma Bhushan in 1981.
He is AEROSPACE ENGINEER at DRDO & ISRO.
He used to get average grades in school.
Abdul Kalam is the first bachelor and scientist who occupied the Rashtrapati Bhawan.
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