The most slippery substance in the world – polytetrafluoroethene (PTFE, or Teflon) – was discovered accidentally. Submitted by: Kumar Adarsh - Patna , India
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 15 cm taller in summer. Submitted by: Muhaimin Mareum Khan - Dhaka, Bangladesh
Radar is an abbreviation of Radio Detection And Ranging. Submitted by: Marvin Jadulos - Philippines
If an atom were the size of a stadium, its electrons would be as small as bees. Submitted by: Cathy - Manchester, England, United Kingdom
At 25, Physicist Lawrence Bragg is the youngest person to receive a Nobel Prize. Submitted by: Noha - Egypt
Light does not age. Submitted by: Natalie - New York City, NY, United States
Atom is over 99.9% empty space. Submitted by: John - Australia
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 0.000000000001 mm (1/25,000,000,000,000 in).
Laser is an abbreviation of Light Amplification by Stimulated Emission of Radiation. Submitted by: Hyde - Toronto, Ontario, Canada
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.
On average, our bodies constantly resist an atmospheric pressure of about 1 kg per square cm. Submitted by: Dashney - Canada
The deepest location on Earth is Mariana Trench, about 11 km deep in the North Pacific ocean. Submitted by: Apurv - Gaya, India