Why do humans get dizzy ??

 Dizziness happens when brain gets confused signals about where the body is  !!!

It also happens when body is not getting enough oxygen or blood.

1.   When balance system gets mixed signals 

                    We have fluid filled canals inside ear which tells the brain whether the head is rotating or not.

                    Eyes track where the horizon is and what is moving around.

                    Nerves in muscles and joints tell whether body is sitting, leaning or standing.

When these 3 disagree with each other, we get dizziness  !!!

 Example  :  Reading in moving car .

Let's see what happens.   

        

Eyes say, We are stationary.

Inner ear  :  We are turning and accelerating   !!!

Body muscles   :  We feel the motion 

Brain  :  ERROR   !!!!

Other reasons are   ----

1.  Blood flow drops to brain 

2.  Direct hit to inner ear /  brain 

3.  Anxiety and fatigue 

Most dizziness is brief and harmless......

It is worth checking if  dizziness is frequent, comes with hearing loss, severe headache or fainting.

World of ants

  Ants are abundant everywhere 

                     There are 20 quadrillion ants in the world !!!

We can practically found them everywhere.

Ants are abundant in Australia 

                    With almost 5000 ant species, tropical Australia is one of the ant rich locations of the world  !!!

Ant colonies are very well organized 

                   Ants work as a group without leaders.

Ants communicate via pheromone trails.

Ants enter home in search of food and water.

Ants are skilled climbers.

Ants can be prevented by using insecticides.

Why road trip feel shorter on the way back ???

 We often feel trip was shorter when coming back.  Here are the reasons ----

1.   Familiarity of the route

                   When we are heading bavk,  our brain already knows the turns, roads and landmarks.  

                    Now our mind is not  as alert to every detail, journey feels smoother and quicker..

2.  Less mental anticipation 

3.  Relaxed mindset

4.  Psychological trickery 

                     This phenomenon is quirk of human perception.  Our brain naturally compress time when revisiting familiar places.

                      What felt long and exhausting on the way, suddenly seems effortless on way back  !!!!

Poison of these animals is stronger than cyanide !!!

  Some creatures in animal kingdom don't need fangs or claws to be dangerous.  They carry something more dangerous.

Toxins so powerful they can kill with a tiny dose  !!!

Such animals are   ----

1.  Golden poison frog

2.  Blue ringed octopus 

3.  Puffer fish

4.  Cone  snail

5.  Box jellyfish 

6.  Brazilian wandering spider 

7.  Deathstalker scorpion 

8.  Stonefish 

Which acid is known as " King of chemicals " ??

 Sulphuric acid (  H2SO4   ) stands out as the most essential and widely used chemical in the world.

Sulphuric acid is the strong mineral acid, highly corrosive, dense and oily in texture.

It is colourless, soluble in water and is known for its strong dehydrating and oxidising properties.

Major properties that make sulphuric acid so important   ------

1.   Strong acidic nature, reacts with both acids and bases.

2.  Powerful dehydrating agent.

3.  Good oxidising agent especially in high temperature.

4.  High reactivity.

Applications of sulphuric acid  -------

1.  Agriculture and fertilizers.

2. Petroleum refining 

3.  Mining and metallurgy 

4.   Pharmaceuticals 

5.  Manufacturing of detergents, plastics and dyes 

6.  Automobiles