Physics Facts & Trivia

A rubber band shrinks when heated and expands when cooled because of the change in its Entropy state. Submitted by: Emily (Awesome) - Helena, Montana, United States

   Due to the effect of Thermal Expansion, the Eiffel Tower is upto 15cm taller in summer. Submitted by: Muhaimin Mareum Khan - Dhaka, Bangladesh

   If an atom were the size of a stadium, its electrons would be as small as bees. Submitted by: Cathy - Manchester, England, United Kingdom

   Laser is an abbreviation of Light Amplification by Stimulated Emission of Radiation. Submitted by: Hyde - Toronto, Ontario, Canada

   Light does not age. Submitted by: Natalie - New York City, NY, United States

   At 25, Physicist Lawrence Bragg is the youngest person to receive a Nobel Prize. Submitted by: Noha - Egypt

   Atom is over 99.9% empty space. Submitted by: John - Australia

   The most powerful lasers are made with Neodymium-doped Yttrium crystals. In a fraction of a second, they produce more power than the whole United States. Submitted by: Moi - Toronto, Canada

   Sunlight exerts pressure (solar radiation pressure). Submitted by: Hemant - India

   The effect of Relativity made Astronaut Sergei Avdeyev a fraction of a second younger upon his return to Earth after 747 days in space. Submitted by: Moi - Canada

   The Dead Sea is so dense with salt, you can easily float on it without drowning. Submitted by: Ankita Lalwani - Dubai, United Arab Emirates.

   Lake Baikal in Russia contains more water than all the North American Great Lakes 

combined.

   The world's densest wood, the Black Ironwood (Olea laurifolia), does not float on water and therefore sinks. Submitted by: Sruthi R - Coimbatore, India

   The mass of our entire atmosphere is estimated to be some 5.5 quadrillion tons (55 followed by 14 zeros). Submitted by: Sruthi R - Coimbatore, India

   The diameter of a proton is approximately 0.000000000001mm (1/25,000,000,000,000in). 

   The amount of water beneath our ground soil is 50 times as much as all the water in the rivers and lakes combined. 

 

   The lightning bolt is 3 times hotter than the Sun. Submitted by: Jieian

On average, our bodies constantly resist an atmospheric pressure of about 1kg per square cm.

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