How to Use the Einstein's E=mc² Calculator

A step-by-step guide to using the Einstein's E=mc² interactive visualizer.

Step-by-Step Guide

1. 1

   Adjust the mass m slider to set the amount of material (in kilograms).

2. 2

   The left bar shows the relative mass — even at maximum it appears tiny.

3. 3

   The right glowing bar shows the resulting energy, on a logarithmic scale.

4. 4

   Read the exact energy value in Joules (exponential notation) from the result panel.

5. 5

   Compare the two bars to feel the incredible conversion ratio of c² ≈ 9×10¹⁶.

Formula Explanation

Even a tiny piece of chocolate holds as much energy as a huge bomb — Einstein proved that mass and energy are the same thing in disguise! A single gram of anything contains enough energy to power a city for hours.

Real-World Applications

• → Nuclear reactors convert about 0.1% of uranium mass into usable electricity using E=mc².
• → PET scanners detect cancer by tracking positron-electron annihilation — pure mass-to-energy conversion.
• → The Sun fuses 600 million tonnes of hydrogen per second, with 4 million tonnes converted to pure energy.