An curved arrow pointing right. Astronaut Terry Virts shows what it looks like when an effervescence, such as an Alka-Seltzer tablet, dissolves in water in outer space. This demonstration was ...

Faith has been the greatest motivator for humanity and in the last five weeks Prayagraj has witnessed more than half a ...

An example of this is effervescence in which a reaction in a liquid produces bubbles of gas. Effervescence is an indicator of a chemical reaction taking place. Watch this video to see how ...