Category: Science

There are about 80-100 billion galaxies in the observable universe, that is, that part of the universe visible to us. There may be more in that part of the Univ...

The distance that light travels in a vacuum in one year, approximately 9.46 trillion (9.46 × 1012) kilometers or 5.88 trillion (5.88 × 1012) miles. Informal. A ...

1 US gallon = 3.7854118 liters 1 Imperial gallon = 4.54609 liters also 1 Liter = 0.26417 Gallons The gallon is a common unit of liquid measure though it can al...

Ever wondered how many feet are in a mile well the answer is 5,280. At least that is the answer unless you are talking about nautical miles then the answer is d...

This depends on the size (shape, too) and weight of the balloons. A good rule of thumb is that a liter of Helium will lift around a gram – or 1000 liters of gas...

One day almost everyone wonders how many weeks there are in a year. The answer seems to be obvious because it is elementary mathematics. You can count them by d...

You may use this weight conversion table if you are converting pounds (lbs, lb) to ounces (oz) for the values listed in the table below. Pound and ounce are imp...

As of 2012, there are 118 known elements Elements consist of particles called atoms that consist of protons, electrons and optionally neutrons. Protons and neut...

Until just a few years ago, there were 9 planets in the Solar System. However, the International Astronomical Union decided that Pluto is no longer a planet, so...