Page 3 - Science Facts

If you collapse an underwater bubble with a soundwave, light is produced, and nobody knows why.

It’s a phenomenon called sonoluminescence. Sonoluminescence is a physical occurrence by which sound turns into light. Scientists have been trying for 70 years to explain it, but have had no success. No one has managed to explain how a bubble of air in water can focus sound to cause light, but it happens. 

Some minor revelations have surfaced, however. At first, physicists thought friction was to blame, but in the late 1980s, they discovered that a sound wave’s path expanded bubbles and heated the gas inside them to temperatures hotter than the sun’s surface. That collapse with the heat, they thought, created a glowing plasma. Thirty years later, that is still the going theory. 

However, researchers have suggested that different physical mechanisms must be at work and that there must be multiple kinds of sonoluminescence. What’s been concretely determined so far, though, is that it has to do with the size of the bubble as well as the OH emission from the bubble when it bursts. 

If the science goes much further, it could be possible that some day sound and gas could be used to light underwater areas, exceeding the limitations of conventional lights. 


Bipolar Disorder may have been the result of evolution and may have been conducive to surviving harsh climatic conditions

Bipolar Disorder is a mental illness and its sufferers experience periods of elevated moods (known as mania or hypomania) and periods of depression.

Suicide risk is high at greater than 6% over 20 years, while self-harm occurs in 30–40% of those suffering from BD.

There are some scientists who now believe that Bipolar Disorder may have some evolutionary benefits and may actually be a result of evolution.

They argue that, if under severe stress or threat the depressive mood may serve as a defense strategy.

The depressed mood will force an individual to retreat from the stressor. He/she will also be inclined to sleep more which will preserve resources and energy for better times.

Mania, on the other hand, stimulates creativity, confidence, and high energy.

Evolutionary biologists have hypothesized that bipolar disorder could have come from an adaptation to extreme climactic conditions in the northern temperate zone.

Depression would have helped with survival during long winters because the increase of sleep, (similar to a mini-hibernation) lethargy, lack of interest in social activities and overeating would all have been conducive to winter survival.

The summers were short, so the hypomania would have increased energy levels, allowing for the completion of the many tasks necessary in a short period of time available, in preparation for winter.


NASA estimates that the value of minerals in the asteroid belt exceeds $600,000,000,000,000,000,000. Or nearly $100 billion per person alive.

There are some things that the human brain literally cannot comprehend, such as the size of the universe. More locally, however, there are still some incredible numbers to look at in awe.

One NASA report estimates that the mineral wealth of the asteroids in the asteroid belt might exceed more than $100 billion for each of the six billion people (at the time) on Earth.

Doing the math, that comes out to $600,000,000,000,000,000,000 worth of minerals in the belt!

An asteroid with a diameter of one kilometer would have a mass of about two billion tons. There are perhaps one million asteroids of this size in the solar system.

One of these asteroids, according to John S. Lewis, author of the space mining book Mining the Sky, would contain 30 million tons of nickel, 1.5 million tons of metal cobalt and 7,500 tons of platinum. The platinum alone would have a value of more than $150 billion.

For now the price of mining an asteroid would simply be too high to be worth it, but who knows what could happen in the future! There's a lot of wealth just floating out there in space.


Some awesome lists!

This man was shot an unbelievable amount of times but he still claims that he actually enjoyed being a soldier at war.

Most people come back from war changed men or women.

You would think no one would come back after being injured in war and claim they enjoyed it. Well, that would be wrong.

Sir Adrian Carton de Wiart served in the British Army in the Boer War, First World War, and Second World War.

He was shot in the face, head, stomach, ankle, leg, hip, and ear; survived two plane crashes; tunnelled out of a POW camp; and bit off his own fingers when a doctor refused to amputate them.

Describing his experiences in World War I, he wrote, "Frankly I had enjoyed the war."

In his memoirs he wrote, "Governments may think and say as they like, but force cannot be eliminated, and it is the only real and unanswerable power. We are told that the pen is mightier than the sword, but I know which of these weapons I would choose."

He holds seven service awards, including the Victoria Cross, the highest award for valor awarded by the British Commonwealth.

Carton de Wiart is truly a military man.


What if I told you that your precious ruby stone was just an impure, transparent mineral?

Rubies and sapphires are, in fact, merely impure corundum minerals.

This mineral is one of the naturally transparent minerals, but can be different colours when impurities are present, making them ruby red or sapphire green.

Corundum is so hard that it can scratch almost any other mineral, meaning it is commonly used in large machines used in machining metals, plastics and wood.

Corundum is also unusually dense, which is rare for a transparent mineral composed of low atomic mass elements.

Corundum is also used as an abrasive and is mined in Zimbabwe, Russia, Sri Lanka and India.

It is also synthetically manufactured to be used for this purpose.



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