ChevScience

A weblog of popular science

Archive for March, 2012

Assessment on Tuesday

Posted by ChevScience on March 31, 2012

Let me know if you need a hand with any-thing over the weekend

Posted in Astrophysics | Leave a Comment »

Not so fast, neutrino

Posted by ChevScience on March 31, 2012

Einstein’s nightmare may be over after scientists shed new light on the speed of the strange particle.

The British astrophysicist Arthur Eddington once wrote, “No experiment should be believed until it has been confirmed by theory.”

Albert Einstein ... so much for those who thought his theory was wrong.Read on

Posted in Astrophysics | Leave a Comment »

History of the Moon

Posted by ChevScience on March 30, 2012

The man in the moon might not change from month to month, but the lunar surface didn’t always look this way.

A new NASA video depicts the fiery history of the moon, showing how the familiar shapes we see each night were actually caused by barrages of asteroids and blazing flows of magma.

Learn more here.

 

Posted in Astrophysics | Leave a Comment »

Take this planet to warp speed – now!

Posted by ChevScience on March 24, 2012

Computer simulations predict black holes acting like slingshots to rip planets from their orbits and fling them through space at colossal speed.

A typical “hypervelocity planet” would travel at 11 to 16 million km/h but some could reach speeds of up to 48 million km/h, a few per cent of the speed of light.

Star Trek

here

Posted in Astrophysics | Leave a Comment »

Are we alone?

Posted by ChevScience on March 19, 2012

Have a lok at this. Very interesting and worthy of class discussion

Posted in Astrophysics | Leave a Comment »

cool video from Myth busters presenter

Posted by ChevScience on March 19, 2012

Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed — Eratosthenes’ calculation of the Earth’s circumference around 200 BC and Hippolyte Fizeau’s measurement of the speed of light in 1849. 

 

Posted in Astrophysics | Leave a Comment »

Superfast neutrino claim takes another beating

Posted by ChevScience on March 18, 2012

Superluminal neutrinos are slowing fast. Last September, a preliminary but electrifying resultsuggested these ghostly subatomic particles might travel faster than light. Now a second experiment, ICARUS – based in the same lab in the Gran Sasso mountain, Italy, as the original one, OPERA – has measured the particles’ flight time and found that they seem to fly at light speed after all. Read on. At least I wont have to rip up your text books like I threaten. Read on

Image

PS: The competition has been won. 

Posted in Astrophysics | Leave a Comment »

Photovoltaic glass

Posted by ChevScience on March 18, 2012

This will be cool

Posted in Popular Science | Leave a Comment »

The first person/s to get this right wins a free guitar lesson from me

Posted by ChevScience on March 14, 2012

Sketch on the same axis using different colours the following

1.Force

2.Torque

3. Flux

4.Induced EMF

Use Different colours or clearly label your graph and Explain each graph

Plus

EXPLAIN why is is physically difficult to pull this solid aluminium sheet out of the magnetic field. Include a diagram

Posted in Astrophysics | Leave a Comment »

How a Nuclear Bomb Could Save Earth From an Asteroid

Posted by ChevScience on March 14, 2012

A well-placed nuclear explosion could actually save humanity from a big asteroid hurtling toward Earth, just like in the movies, a new study suggests.

Scientists at Los Alamos National Laboratory, a United States Department of Energy facility in New Mexico, used a supercomputer to model nukes’anti-asteroid effectiveness. They attacked a 1,650-foot-long (500-meter) space rock with a 1-megaton nuclear weapon — about 50 times more powerful than the U.S. blast inflicted on Nagasaki, Japan, to help end World War II.

The results were encouraging.

“Ultimately this 1-megaton blast will disrupt all of the rocks in the rockpile of this asteroid, and if this were an Earth-crossing asteroid, would fully mitigate the hazard represented by the initial asteroid itself,” Los Alamos scientist Bob Weaver said in a recent video released by the lab. [Video: Nuclear bomb takes out asteroid]

I remain very skeptical about this.. Mr.N

Posted in Astrophysics | Leave a Comment »