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Physics Facts & Trivia

Polytetrafluoroethene TeflonThe most slippery substance in the world – polytetrafluoroethene (PTFE, or Teflon) – was discovered accidentally. Sciensational.comSubmitted by: Kumar Adarsh - Patna , India

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

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

RadarRadar is an abbreviation of Radio Detection And Ranging. Sciensational.comSubmitted by: Marvin Jadulos - Philippines

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

LaserLaser is an abbreviation of Light Amplification by Stimulated Emission of Radiation. Sciensational.comSubmitted by: Hyde - Toronto, Ontario, Canada

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

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

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

Most powerful laserThe 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. Sciensational.comSubmitted by: Moi - Toronto, Canada

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

E=mc2The effect of Relativity made Astronaut Sergei Avdeyev a fraction of a second younger upon his return to Earth after 747 days in space. Sciensational.comSubmitted by: Moi - Canada

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

Lake BaikalLake Baikal in Russia contains more water than all the North American Great Lakes combined. Sciensational.com

black ironwood treeThe world's densest wood, the Black Ironwood (Olea laurifolia), does not float on water and therefore sinks. Sciensational.comSubmitted 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). Sciensational.com

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

The first ten feet of the ocean hold as much heat as the Earth's entire atmosphere. Sciensational.com

lightning boltThe lightning bolt is 3 times hotter than the Sun. Sciensational.comSubmitted by: Jieian