Mass (m) is the measure of a bodies energy content, a measure of how much energy is needed to accelerate an object, and a measure of the extent to which a body curves spacetime. The affects of mass give bodies “gravity” and “weight”. There are a few different ways to measure mass, but all can be understood through the lens of Newton and Einstein. Mass (potential energy) is understood as equivalent to energy (kinetic energy) using the speed of light as a conversion factor (E=mc2.). The fact that mass and energy can be conserved each other, means we can refer to both as simply mass-energy. All mass types can understood as the amount of force needed to accelerate an object (f=ma), except for quantum mass which is the frequency of energy in Planck units (E=hf).

Factoids tagged with "Mass"

Information Can Escape from a Black Hole Myth

The Black Hole Information Paradox suggests information can’t escape a black hole intact. While new theories show information may be able to escape, it hasn’t been proven as of 2016.

Human Behavior can be Random Fact

Human behavior can be random to some extent, but most behavior is based on prior input, and thus is “deterministic” (meaning not totally random).

Time is Relative Fact

Time is relative to speed and gravity (time dilation), and so is space (length contraction). Light speed is constant for all observers, so time and space can’t be.

Blog Posts tagged with "Mass"

What is Light?

We explain “light,” both as electromagnetic radiation within a visible portion of the electromagnetic spectrum, and as electromagnetic energy carried by photons.