Which celestial bodies of solar system got rings ??

 When we think of a planet with rings, we always think of planet Saturn.

But Saturn is not the only planet that have rings.

I can say Saturn is not the only celestial body with rings in our solar system  !!!

All the 4 gas giants, Jupier  Saturn Uranus and Neptune have rings surrounding them.

Rings are mostly made of ice, dust and small rocks.

Saturn's rings are made of ice.

Jupiter's rings are made of dust.

Uranus and Neptune's rings are made of both.

Dust rings appear much fainter than ice rings. Thus making harder for us to see.

These many planets have rings around them and these rings are not permanent eventually they get vanish.

Not only these planets,  some dwarf planets and asteroids too have ring system   !!!

Dwarf planets  -----

1. Haumea

              It is a dwarf planet in Kuiper belt has rings.

2.  Quaoar

             Another dwarf planet in Kuiper belt having rings.

Asteroids with rings or moon 

1.  Chariklo 

              It is a centaur asteroid having two rings.

2. Some asteroids have moon or binary companion.

Most hated countries in the world

 These are the most hated countries  -----

1.  China  (  obviously  )

2.  United States of America 

3.  Russia 

4. North Korea 

5.  Pakistan 

6.  Iran

7. Iraq 

8.  Syria 

9. Israel 

Homemade invisible ink using lemon juice

 What we need

1.  Cotton bud

2.  Lamp

3.  Plain white paper

4.  Bowl having lemon juice 

Experiment 

1.  Take the bowl having lemon juice. 

2.  Dip the cotton bud in the mixture and use it to write something on the white paper.

3. Allow the paper to dry.

4.  Now no one can read what we have written on the paper  !!!!

What happened 

1.  Secret message can be revealed when we hold the paper, close to light bulb.

2. Lemon juice contains carbon compounds which are colourless at room temperature.

3.  The heat from the light bulb breaks down these compounds and releases the carbon.

4.  Carbon oxidises when it comes into contact with the air and turns brown. 

5.  Thus our invisible message becomes visible to every one  !!!!! 

Red sand that we can eat !!!

 We all know about Strait of Hormuz which is now blocked by Iran thereby making the oil and gas supply to the world difficult.

But here I am not talking about strait of Hormuz  !!!

I am talking about Hormuz island which has one of the most unique beaches in the world which is known as " blood beach ".

The sand on Hormuz beach takes on a deep red shade due to high iron oxide content.

This mineral rich soil gives the coast line its blood red appearance  !!!!

Locals refer to this sand as " gelak  ".

Its pigmentation is so intense that it can stain the skin for days  !!!

Some sand grains even react to magnets.

This sand is a critical ingredient of Iranian cuisine. 

No.....   No........

Residents don't eat this sand in its powdary form  !!!

Rather they use it as a spice.........

 

This sand is also used in dyeing fabrics and colouring pottery.

What are astronomical phenomenon Pulsar ??

 This question was asked on Koun Banega Karodpati program.

Question 

What are astronomical phenomenon Pulsar  ??

1.  Neutron Star

2.  Black hole

3.  Supernovae 

4.  Comet 

Answer 

Pulsers are rapidly rotating neutron stars.

They emit electromagnetic radiation in beams pointing away from their rotational axis.

These beams are visible only when they sweep past our line of slight, much like a lighthouse beam.

That's why they are called pulsars    !!!