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Immune System, antibodies and vaccines

We are surrounded by pathogens of various diseases but we don’t get sick too often. Through the course of evolution, we have got a...

Deadly Coronavirus: Symptoms, Causes & Prevention

What is Coronavirus? The coronavirus is a family of viruses that can cause a range of respiratory illnesses in individuals including the common cold and...

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Immune System, antibodies and vaccines

We are surrounded by pathogens of various diseases but we don’t get sick too often. Through the course of evolution, we have got a...

More News

Immune System, antibodies and vaccines

We are surrounded by pathogens of various diseases but we don’t get sick too often. Through the course of evolution, we have got a...

INVENTIONS AND DISCOVERIES

Adding Machine, 1642. Inventor: Blaise Pascal (France) (1623-62). Earliest commercial machine invented by William Burroughs (USA) in St. Louis, Missouri in 1885. Addressograph, 1893. Inventor:...

Deadly Coronavirus: Symptoms, Causes & Prevention

What is Coronavirus? The coronavirus is a family of viruses that can cause a range of respiratory illnesses in individuals including the common cold and...

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GENERAL SCIENCE

GENERAL SCIENCE★ Branches Of Science ★ Measurements And Numbers ★ Scientific Instruments And Appliances ★ Inventions And Discoveries ★ Everyday Science ★ Physiology And...

What is the avian influenza virus?

This is a virus that has been circulating among birds and typically does not infect human beings. There are, however, three main sub-types of...

Why does the night sky appear dark ?

Sky is nothing but the light scattered by the atmosphere. At night there is no light passing through the atmosphere. Flence, there is nothing...

How does frost build up in refrigerators

The refrigerator door has to be opened at times to put things in or take things out. When that happens, some outside air is...

Inverse square law of illumination

Inverse square law of illumination : The intensity of illumination of a surface by a point source of light varies directly with the illuminating power...

Lenz’s law

Lenz's law : When a circuit and a magnetic field move with respect to each other, the direction of the induced current is such so...

LAWS OF THERMO-DYNAMICS

LAWS OF THERMO-DYNAMICS First law of thermo-dynamics : The heat produced in a mechanical work is in proportion to the work done. Must Read: LAWS OF CHEMICAL COMBINATION Laws...

Photo-electric effect

Photo-electric effect : It is the phenomenon of emission of electrons by substances when irradiated with light of a frequency greater than a certain minimum...

Ampere’s swimming rule

Ampere's swimming rule : If a man sets himself floating in the direction of the current facing the coil, then the north pole of a...

How does solar cooker functions?

How does solar cooker functions? By its very name, a Solar Cooker would mean cooking meals with solar energy without any conventional fuel. The cooker...

Why is lightning accompanied by thunder ?

Lightning occurs when a massive electrical discharge takes place between two oppositely charged clouds. It may also occur when this discharge is between the...

Why do rain clouds appear black ?

When we see something as black, it signifies the absence of light in that particular object. The composition of these rain-bearing clouds is rather...