Archives for category: Science

At 35,000 feet, sound waves travel at 295 meters per second (660 miles per hour).

As the speed of super sonic jets gradually surpass the sound waves its engines are creating, they compress. At the point where the jet outruns its own noise, the resulting pressure builds up until it pops–creating a sonic boom.

There ya go. Now enjoy these sweet photos.

What did Mars look like when it had oceans and an atmosphere?

Mars is known as the Red Planet. Why is it red? In short because the planet hasn’t seen a drop of water in billions of years and it’s a giant and perpetual dust bowl–much like the American Midwest experienced in the 1930’s. 

It is common knowledge that Mars had oceans like Earth in its distant past. So what would this neighboring planet look like if it again had water?

Kevin Gill, a software engineer,  pursued this question through his project, A Living Mars

Here’s his result:

Most of us have seen the famous “face on Mars” image, captured by Viking in 1976. It appears to depict a humanoid face gawking into space from the floor of the Cydonian Valley.

 

As compelling as this evidence of extraterrestrial life may have been for enthusiasts, few scientists considered the blurry photo proof that little green men had carved their leader’s mug into a mountain. NASA eagerly chalked up this anomaly to natural geology meeting bad lighting.

The 1973 photo was snapped with little more than a Polaroid camera duct taped to a satellite, so nobody could convincingly dispute NASA’s conclusions. Case closed.

Everything changed on April 5, 1998 when NASA launched Mars Global Surveyor (MGS); the mission, to orbit Mars and document its surface using high resolution cameras and telescopic lenses.

Initially, the data being transmitted to Earth was closely guarded, but NASA and Jet Propulsion Laboratory succumbed to public pressure and began selectively releasing it — including an updated image of “the face on Mars”.

“See”, Nasa said,”we had it correct 25 years ago, nothing here but hills”. This time, however, a dissenting voice came from high within their own ranks. Dr. Tom van Flandern, Chief Astronomer of the US Navel Observatory, announced that details of the published image had been intentionally filtered out.

Dr. Flandern’s own imaging experts removed Nasa’s photographic filters, then triangulated the 1998 photo with the original 1976 photo. The results shocked them.

Previously unobserved details now came into sharp focus — eye brows, irises, nostrils, parted lips.

Given the correct size, shape, location and orientation of these facial features, Flandern statistically determined this to be an artificially created structure. In fact, according to him, the odds against the face being a result of natural processes are “one in a thousand billion billion”…this isn’t a typo.
Dr. Flandern’s calculations were met with silence, despite his exalted position at Nasa. He died of cancer in 2005, but not before giving a series of sobering presentations to the public. Here’s one of them.

In 1985, a fantasy world of crystals was discovered in a silver mine 1,000 feet below Mexico’s Chihuahua Desert.

The 600,000 year old cave contains 170 crystal obelisks that measure up to 37 feet. Millions of years ago, these giant obelisks formed when retreating magma caused the chamber’s calcium rich groundwater to cool.

Today, the cave reaches 112 degrees F, requiring explorers to wear protective suites and backpacks filled with ice-cooled air.