Today I Learn

04 Jan 2023 02:45

What is the relationship between color and energy in stars?

Most stars that we see in the night sky appear silver or whitish to our eyes.

In reality, the colours of the stars differ from one another, ranging from blue, yellow, orange and red.

Different colored stars send out different kinds of energy. The blue stars send their energy through ultra-violet rays, while blue-white, white, yellow-white, yellow, orange and red stars send out their energy in heat waves.

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03 Jan 2023 14:31

What is Ruby and Sapphire ?

Ruby and Sapphire are oxides of Aluminium. They have the same chemical composition and crystal structure - they are both varieties of the mineral corundum.

Rubies: The most desired variety of corundum is the ruby. The red color is produced by trace amounts of chromium in the mineral.

Ruby is the red variety, and Sapphire is the variety that encompasses all other colors, although the most popular and valued color of Sapphire is blue.

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01 Jan 2023 02:18

Do insects have lungs?

Instead of lungs, insects breathe with a network of tiny tubes called tracheae. Air enters the tubes through a row of holes along an insect's abdomen. The air then diffuses down the blind-ended tracheae.

Since the biggest bugs have the longest tracheae, they should need the most oxygen to be able to breathe.

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31 Dec 2022 07:22

What mineral is the hardest?

As it says in Mohs scale, the diamond is always at the most top of the scale, being the hardest mineral.

There are ten minerals in Mohs scale, talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, and for last and the hardest, diamond.

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29 Dec 2022 03:25

New Words Daily with its Meaning.

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28 Dec 2022 04:49

New Words Daily with its Meaning.

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25 Dec 2022 07:07

New Words Daily with its Meaning.

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23 Dec 2022 03:37

What is TX- 2 initiative?

Double the number of Tigers by 2022.

Tigers are the largest species of cat and one of the most iconic animals on the planet.

One hundred years ago, there were 100,000 wild tigers.


By the year 2010, as few as 3,200 wild tigers remained.


This shocking 97% population decline was driven by rampant poaching and habitat loss. In 2010, governments of the 13 tiger range countries decided innovative conservation efforts were needed.

The most ambitious and visionary species conservation goal was set: to double the number of wild tigers by 2022 – the next Chinese year of the tiger.


The goal is called Tx2 running by WWF. 

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22 Dec 2022 11:10

What is the Ketogenic Diet?

A keto diet is well known for being a low carb diet, where the body produces ketones in the liver to be used as energy.

It's referred to as many different names – ketogenic diet, low carb diet, low carb high fat (LCHF), etc.

When you eat something high in carbs, your body will produce glucose and insulin.

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20 Dec 2022 06:04

New Words Daily with its Meaning.

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18 Dec 2022 05:51

New Words Daily with its Meaning.

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17 Dec 2022 03:25

New Words Daily with its Meaning.

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16 Dec 2022 06:23

New Words Daily with its Meaning.

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15 Dec 2022 03:40

New Words Daily with its Meaning.

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14 Dec 2022 03:07

New Words Daily with its Meaning.

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03 Jan 2023 15:50

New Words Daily with its Meaning.

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02 Jan 2023 06:05

Can fish breathe out of water?

Though some fish can breathe on land taking oxygen from air, most of the fish, when taken out of water, suffocate and die. This is because gill arches of fish collapse, when taken out of water, leaving the blood vessels no longer exposed to oxygen in air.

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31 Dec 2022 07:23

New Words Daily with its Meaning.

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30 Dec 2022 03:37

What is Carbon Sequestration ?

Carbon sequestration describes long-term storage of carbon dioxide or other forms of carbon to either mitigate or defer global warming and avoid dangerous climate change.

It has been proposed as a way to slow the atmospheric and marine accumulation of greenhouse gases, which are released by burning fossil fuels.

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29 Dec 2022 03:24

What are magnetars?

A magnetar is a type of neutron star with an extremely powerful magnetic field.

The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays.

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27 Dec 2022 06:04

When was the wireless phone invented?

A jazz musician named Teri Pall invented a version of the cordless phone in 1965 but could not market her invention, as its 2-mile (3.2 km) range caused its radio signals to interfere with aircraft communications.

In 1968, she sold her rights to the cordless phone to a manufacturer who modified it for practical use.

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25 Dec 2022 07:06

What is an OLED screen?

An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current.

An OLED display can be driven with a passive-matrix (PMOLED) or active-matrix (AMOLED) control scheme.

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22 Dec 2022 11:11

New Words Daily with its Meaning.

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21 Dec 2022 16:16

What are essential fatty acids?

Human body can synthesize most of the fats it require.

However, two essential fatty acids, linoleic and alpha-linolenic, cannot be synthesized in the body and must be obtained from food.

These basic fats, found in plant foods, are used to build other specialized fats called omega-3 and omega-6 fatty acids.

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20 Dec 2022 06:02

What is photosphere?

Photosphere is the outer shell of star from which light is radiated.

It is the innermost layer of the solar atmosphere to which our eyes can penetrate through the superficial transparent layers.

Our view is obstructed beyond this layer by the rapidly increasing opacity of the denser layers of the gas as we go inward through it.

Temperature of photosphere for Sun is about 5,800 K and values of pressure & density are low.

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18 Dec 2022 05:50

How does potash alum arrest bleeding?

Bleeding can be stopped by coagulation of the blood (formation of a clot). Potash alum has highly charged Al3+ and (SO4)2- ions which act as neutralizing ions for the protein colloid in blood.

This causes aggregation or clotting and this in turn stops the bleeding.
Chemical Formula of Potash Alum :
K2SO4.Al2(SO4)3.24H2O

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17 Dec 2022 03:25

What is a carat, and how does it relate to a karat ?

A carat is a unit of weight for diamondsand other gemstones.

One carat equals 200 milligrams (0.200 grams). There are 453 grams in a pound (1,000 grams to a kilogram).

A karat, when used with gold, is a unit of purity- 24-karat gold is pure gold, but usually you mix gold with a metal like copper or silver to make jewelry (because pure gold is too soft).

Each karat indicates 1/24th of the whole.

So if a piece of jewelry is made of metal that is 18 parts gold and 6 parts copper, that is 18-karat gold.

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16 Dec 2022 06:22

What is largest cell in human body ?

The largest cell in the human body is the female egg, also known as ovum; it's 1000 micrometres in diameter.

The smallest cell in terms of volume is the sperm cell—it's little more than a nucleus propelled by mitochondria and a flagellum.

Male Sperm is the smallest cell in the human body.

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15 Dec 2022 03:40

Why do animals have tails?

Many animals, such as felines,mammals and insects have tails.

The tail has many functions. In Africa animals have evolved into growing tails to brush away flies.

It is also used for balance, by animals such as cats and kangaroos.

Although, the Arctic Fox uses it's tail for warmth, and the fish uses it to move through water.

It is very peculiar that animals have gotten to use tails in ways you would never would have predicted.

Some fish also use it to inject venom into their prey, thus bringing the conclusion that tails have evolved to defend, attack and even warm the animal itself.

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14 Dec 2022 03:07

Male mosquito feeds on ?

Only female mosquitoes bite. Both male and female feed mainly on fruit and plant nectar, but the female also needs the protein in blood to help her eggs develop.

Once she's had her fill of blood, she'll rest for a couple of days before laying her eggs.

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