FunWhy does the effervescent tablet bubble?

Why does the effervescent tablet bubble?

Ingredients in effervescent tablets include sodium bicarbonate and an organic acid, such as citric, ascorbic, and acetylsalicylic. When it comes into contact with water, sodium carbonate dissociates into two ions: the hydrogen carbonate ion (HCO3-) and the sodium ion (Na +). The first reacts with the acid in the tablet and gives rise, among other compounds, to carbon dioxide (CO2), a gas that forms small rising bubbles that explode when in contact with air.

Japanese scientists create a 'washing machine for humans'

Can you imagine taking a relaxing bath in a machine that washes you with bubbles, plays relaxing music or videos?

Insect swarms generate as much electricity as a thunderstorm

Swarms of bees can generate an electrical charge of 1,000 volts per meter, a higher voltage density than thunderclouds and electrified dust storms.

This is what the Earth's magnetic field sounds like

The shield that protects our planet sounds 'pretty scary', according to ESA engineers.

Days were only 17 hours long 2.46 billion years ago

It was when the Moon was much closer to our planet. As the centuries pass, the Moon slowly recedes and the length of our day gradually lengthens accordingly.

Women are better at doing crosswords

A new study has revealed that women have a 'small but robust' advantage over time.