When A Bass Isn't A Bass

Chilean Sea Bass, a very popular though overfished deep-sea fish, is not a bass at all. It is actually a Patagonian Toothfish (Dissostichus eleginoides), or sometimes its cousin, the Antarctic Toothfish. It lives in the cold southern waters off of the continent of Antarctica. It doesn't have much competition there. Of the almost 20,000 species ...

Astronomy

Introduction To Jupiter

With its numerous moons and several rings, the Jupiter system is a 'mini-solar system.' Jupiter is the most massive planet in our solar system, and in composition it resembles a small star. In fact, ... Continue reading

Astronomy

The Strange Spin of Uranus

Directional terms like north and south make sense here on Earth. The north and south axis of the Earth is relatively perpendicular to the plane of the Earth's orbit around the sun. Actually, Earth's ... Continue reading

Engineering

Space Lasers Keep Earth's Air Clean

Space laser technology is coming to our smokestacks and automobiles. Leave it to NASA to take its inventions to another level, helping to keep our air clean and breathable. A recent NASA invention, ... Continue reading

Medicine

What Is A Cerebral Aneurysm?

A cerebral aneurysm is the dilation, bulging or ballooning out of part of the wall of a vein or artery in the brain. The disorder may result from congenital defects or from other conditions such as ... Continue reading

How Fast is Mach 1?

by Anton Skorucak, MS

Mach1 A Mach number is a common ratio unit of speed when one is talking about aircrafts. By definition, the Mach number is a ratio of the speed of a body (aircraft) to the speed of sound in the undisturbed medium through which the body is traveling.

It is said that the aircraft is flying at Mach 1 if its speed is equal to the speed of sound in air (which is 332 m/s or 1195 km/hr or 717 miles/hour.) An aircraft flying at Mach 2 is flying at twice the speed of sound in air, etc. Mach numbers are named after Ernst Mach (1838-1916), an Austrian philosopher and physicist. The term Mach number came into use in 1929.

When A Bass Isn't A Bass

Introduction To Jupiter

The Strange Spin of Uranus

Space Lasers Keep Earth's Air Clean

What Is A Cerebral Aneurysm?

How Fast is Mach 1?

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