DID YOU KNOW? Here are some interesting facts about everything around us.

The purpose of this blog is to share my knowledge on certain trivia questions that most of us don't know.I hope you'll definitely learn something and share this knowledge with your friends too. Some facts might be weird or useless though still you'll be bundled up with some fascinating concepts .

Showing posts with label interesting facts. Show all posts
Showing posts with label interesting facts. Show all posts

Monday, 25 May 2020

Hot water freezes much faster than cold water and it is known as Mpemba effect.







There is a whole slew of weird science facts that we come across many times.I recently stumbled upon an article which stated some elusive reason for," Why hot water freezes faster than a cold one?" and this phenomenon is known as Mpemba effectnamed after a Tanzanian student who discovered that a hot ice cream mix freezes faster than a cold mix in cookery classes in the early 1960s.
Although Aristotle was the first person to notice that hot water freezes faster than cold, but there were not enough evidences to prove that.
Now, since there are various theories on the internet but none of them is fully convincing. All the theories sums up to the fact that This effect is due of Hydrogen bonding between water molecules which is responsible for other anomalous behaviour of water , 'for instance', an abnormal property of water whereby it expands instead of contracting when the temperature is lowered from 4°C to 0°C.

Saturday, 23 May 2020

Have you heard of a condition known as hyponatremia or over-hydration?



As quoted by hippocrates,"everything in excess is opposed to nature" which means nothing in excess is good, the same goes with drinking water.Almost everybody knows what dehydration is. Now there are many opinions on the amount of water to be taken.Health authorities suggest eight 8-ounce glasses every day, which corresponds to 2 litres. This  is  commonly known as 8*8 rule.
Now, drinking too much water was never a problem and will never be, but drinking too much of it in a brief span of time can be problematic.
Moreover, 4-5 litres of water a day is adequate for a healthy adult, 1-litre for 5 to 8 year olds.1.5-litres for 9 to 12 year olds. 2-litres for 13+ years.



What is overhydration?

Sodium balances fluid inside and outside the cell.When we drink too much of water in a short span sodium gets diluted and its level  falls below 135 millimoles per litre, this condition is referred to as hyponatremia.This water imbalance cause cells to swell causing headaches ,nausea, vomiting.You might have seen this when you put resins in water, a phenomenon called endo-osmosis takes place and the resin gets swollen.If this happen with brain cells, it can be fatal.

Friday, 22 May 2020

Most of us know which gas makes our voice squeaky or high pitched,but did you know which gas makes it deep and heavy?

Youtube channel king of random experiment on these gases.



Okay, I'll come to the point directly.Since our childhood we've been told that there are some gases which are fun to play, 'for instance' laughing gas(nitrous oxide), Helium gas, etc. As most of us know inhaling Helium gas your voice sound funny. Did you know Sf6(sulphur hexafluoride) deepens it and makes you sound like Thanos.

Thursday, 21 May 2020

We buy vegetables and stuff in Newton and not in Kg or Gms, believe me, we do.


I'll try to keep my posts concise every time. Yes we weigh vegetables, fruits, groceries in Newton. Since weight=mass*acceleration due to gravity The kg or gram we use while buying and negotiating is technically mass whose unit is the kilogram, but what about 'g' acceleration due to gravity.In our solar system, Earth by default is taken with the value of g=1. That is why it always remains concealed while measuring weights.