Tag: Scientific Inventions

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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...

★ What are the main considerations behind setting up trading blocs ?

According to experts, to form a successful trading bloc, the members should have some elements of similarity. For instance, the chances of a bloc...

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...

NECESSITY IS THE MOTHER OF INVENTION

Ms. Maitreyee Dutta  Ms. Maitreyee Dutta hails from Guwahati, Assam. She is pursuing B.Tech (Electrical) from NIT, Silchar, Assam. She has put forth her thoughts...

INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)

INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA) Established in : 1957 Headquarters : Vienna, Austria Type of Organisation The International Atomic Energy Agency (IAEA) is an international organisation that seeks...

The Melting Of Himalayan Glaciers

The Melting Of Himalayan Glaciers   Every conscious human being is today well aware of the fact that global warming will prove catastrophic in the near future if the...

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...

Law of reflection of light

Law of reflection of light : (i) The angle of reflection equals the angle of incidence, (ii) The incident ray, the reflected ray, and the...

Hook’s law

Hook's law : Within the limits of elasticity, the strain is proportional to the stress. The value of the stress at which a material ceases...