ICE ON MERCURY FOUND AT 427 celsius

So its official, we do have WATER ICE on Planet Mercury, the closest planet to the Sun. It might be surprising, how can ice remain frozen at the temperatures as high as 427 Celsius?

But there are certain locations near and at the North Pole of the planet which are permanently shielded from Sun's heat. There, the Messenger Spacecraft found tons of frozen ice and possible organic molecules.

Highlighted in yellow in this image are the walls and floors of impact craters that harbor large amounts of Water Ice.

Credit: NASA / JHU Applied Physics Lab / Carnegie Inst. Washington

 

 

POSTED BY
rana muddasar
Material BY :
Saqib ALI .

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EINSTEIN THE GREATEST SCIENTIST's Brain

Not your average brain? Left and right views of Einstein's brain, taken shortly after his death by medical examiner Thomas Harvey.

Credit: Brain (2012)/National Museum of Health and Medicine (See Below)

Albert Einstein is widely regarded as a genius, but how did he get that way? Many researchers have assumed that it took a very special brain to come up with the theory of relativity and other stunning insights that form the foundation of modern physics. A study of 14 newly discovered photographs of Einstein's brain, which was preserved for study after his death, concludes that the brain was indeed highly unusual in many ways. But researchers still don't know exactly how the brain's extra folds and convolutions translated into Einstein's amazing abilities.

The story of Einstein's brain is a long saga that began in 1955 when the Nobel Prize-winning physicist died in Princeton, New Jersey, at age 76. His son Hans Albert and executor Otto Nathan gave the examining pathologist, Thomas Harvey, permission to preserve the brain for scientific study. Harvey photographed the brain and then cut it into 240 blocks, which were embedded in a resinlike substance. He cut the blocks into as many as 2000 thin sections for microscopic study, and in subsequent years distributed microscopic slides and photographs of the brain to at least 18 researchers around the world. With the exception of the slides that Harvey kept for himself, no one is sure where the specimens are now, and many of them have probably been lost as researchers retired or died.

Over the decades, only six peer-reviewed publications resulted from these widely scattered materials. Some of these studies did find interesting features in Einstein's brain, including a greater density of neurons in some parts of the brain and a higher than usual ratio of glia (cells that help neurons transmit nerve impulses) to neurons. Two studies of the brain's gross anatomy, including one published in 2009 by anthropologist Dean Falk of Florida State University in Tallahassee, found that Einstein's parietal lobes—possibly linked to his remarkable ability to conceptualize physics problems—had a very unusual pattern of grooves and ridges.

The astronomical clock in Prague..

The astronomical clock in Prague..

  

The Orloj is mounted on the southern wall of Old Town City Hall in the Old Town Square. The clock mechanism itself is composed of three main components: the astronomical dial, representing the position of the Sun and Moon in the sky and displaying various astronomical details; "The Walk of the Apostles", a clockwork hourly show of figures of the Apostles and other moving sculptures—notably a figure of Death (represented by a skeleton) striking the time; and a calendar dial with medallions representing the months.

 

 

Astronomical dial

Functions noted

FIND HOW OTHER 100000 stars and SOLAR ECLISPSElook LIKE and

Visualizing the exact location of every star in the galaxy is a problem of, well, galactic proportions. With over 200 billion stars, capturing every detail of the Milky Way currently defies scientists and laptops alike. However, using image...See More

What do 100,000 stars look like?

Find out here: http://g.co/100000stars.

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An amazing view to a total solar eclipse.....this is recorded during 13th November at Australia.....

MR INVISIBLE NOW A REALITY

Bend it like Beckham...bend the light travelling in straight line....Invisibility cloak now a reality – perfect demonstration

Invisibility is a notion that fascinated humans for centuries or even millennia; it’s just one of those things which never gets old, regardless of the period. We now know that, since we see objects because light bounces of their surface, if we want to make something invisible, you have to prevent it from reflecting light – simple in theory, extremely hard to practice. However, in 2006, invisibility became more of a practical matter, with the suggestion that artificially structured metamaterials could enable a new electromagnetic design paradigm – something which is now called transformation optics.

SCIENTIFIC EXPLANATIONS OF YOUR DAILY QUESTIONS

Scientific Explanations

It is dangerous to sleep in an unventilated room with fire burning inside because the fire produces carbon monoxide and carbon dioxide gases. Carbon monoxide is poisonous and can cause death

The filament of an electric bulb is made of tungsten because it has a high melting point and can be heated to a high temperature to emit light.

Water kept in an earthen pitcher becomes cold because the pitcher has minute pores on its surface which absorb water.

Water in the pores evaporates when it comes in contact with air, and produces a cooling effect.

A sliced apple, when exposed to air, turns brown after some time as it contains iron which gets oxidized and gives the fruit a brownish colour.

The freezing compartment inside a refrigerator is at the top because the air in contact with it becomes cold and heavy and sinks downwards, cooling the rest of the compartment.

A copper vessel left in the air for a long time turns green. This is due to the formation of copper carbonate when copper reacts with carbon dioxide and moisture present in the air.

A wick in a stove keeps burning continuously as kerosene rises in the wick due to capillary action.

The Earth rotates on its axis from west to east. This rotation makes the Sun and the stars appear to be moving across the sky from east to west.

The sky appears blue because the light of the Sun is spread or scattered by the dust particles in the air. In space the sky would appear black as there are no dust or air particles to scatter the light.

Food is cooked quickly in a pressure cooker because the boiling point of water increases at high pressure. Food cooks faster at high temperature.

Inventions and Discoveries in Physics.

Inventions and Discoveries in Physics.

Invention	Year	Inventor	Country
Acetylene Gas	1862	Berthelot	France
Adding Machine	1642	Pascal	France
Adhesive Tape, (Scotch)	1930	Richard Drew	U.S.A
Aeroplane	1903	Orville & Wilbur Wright	U.S.A
Air Conditioning	1902	Carrier	U.S.A
Airplane, (Jet Engine)	1939	Ohain	Germany
Airship (Non - Rigid)	1852	Henri Giffard	France
Aerosol Spray	1926	Erik Rotheim	Norway
Artificial Heart	1957	Willem Kolff	Netherlands
Atomic Bomb	1945	J. Robert Oppenheimer	U.S.A
Atomic Numbers	1913	Moseley	Britain