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Category: Physics

String Theory Explained – What is The True Nature of Reality?
how long is a day on the sun

How Long Is A Day On The Sun?

A day is the amount of time it takes for a planet to spin around and make one full rotation with respect to the Sun. On Earth, it's about 24 hours. But how long is a day on the Sun?

is anything truly random

Is Anything Truly Random?

Researchers say you can predict what number a rolled die would most likely land on - if you precisely understand the viscosity of air, the friction of the table and the acceleration due to gravity. So, does this mean we can predict anything - or is anything truly random?

The real meaning of E=mc2

What Does E=mc² Really Mean?

A hydrogen atom has less mass than the combined mass of the proton and electron that make it up. Weird, right? So how can something weigh less than the sum of its parts? Well, it all comes down to famous equation in physics, that is Einstein's E = mc². In this episode of PBS Space Time, Gabe Perez-Giz explains what this famous equation really says.

how we know black hole exists

How Do We Know Black Holes Exist?

You’ve probably heard about black hole as a space-time region that exhibits such strong gravitational pull that no particle and radiation can escape from inside it. So, if nothing can […]

The Unreasonable Efficiency of Black Holes

The Unreasonable Efficiency Of Black Holes

According to Einstein’s famous equation E=mc^2, anything with mass has a huge amount of energy. Well, there are basically three ways to generate energy: chemical reactions, nuclear reactions, and gravitational […]