Explanation

• Endocrinology is the scientific study of hormones and the endocrine system.
• It deals with glands that produce hormones to regulate body functions.
• Hormones control growth, metabolism, reproduction, and blood sugar.
• The endocrine system helps maintain the body's internal balance (homeostasis).

Additional information:

• Neurology → Study of the nervous system
• Cardiology → Study of the heart

Verified & Updated

Explanation

• Power is the rate of doing work or the rate at which energy is transferred.
• It is a scalar quantity (has magnitude only).
• It shows how quickly work is done.
• The SI unit of power is the Watt (W).
• 1 Watt = 1 Joule per second (1 W = 1 J/s).

Additional information:

• Formula: P = W/t = E/t
• SI Base Unit: kg·m²·s⁻³
• Dimension Formula: ML²T⁻³
• James Watt is the scientist after whom the Watt unit is named.

Last verified on 09-07-2026

Explanation

• Geopolitics is the study of how geography influences politics and international relations.
• It examines how location, borders, resources, and strategic position affect a country's foreign policy.
• The Swedish political scientist Rudolf Kjellén introduced the term "Geopolitics" in 1899.

Last verified on 08-07-2026

Explanation

John McCarthy is recognized as the father of Artificial Intelligence due to his astounding contribution in the field of Computer Science.

John McCarthy was an American computer scientist

Note: Artificial Intelligence is a branch of Computer science, which aims to create intelligent machines so that machine can think intelligently in the same manner as a human does.

Explanation

• A Fathometer is used to measure the depth of the ocean, sea, or any body of water.
• It determines the distance from the water surface to the seabed.
• The instrument works using sound waves (echo sounding).
• It measures the time taken for sound waves to travel to the seabed and return.

Additional information:

• Galvanometer → Measures electric current
• Barometer → Measures atmospheric pressure
• Thermometer → Measures temperature
• Hygrometer → Measures humidity

Last verified on 06-07-2026

Explanation

• Peregrine Falcon is the world’s fastest bird.
• It can reach speeds of over 300 km/h (186 mph) during a hunting dive called a stoop.
• Its scientific name is Falco peregrinus.
• It is known for its exceptional speed and hunting ability.

Additional information:

• Ostrich → Largest and Fastest running bird (up to 70 km/h / 43 mph)

Last verified on 01-07-2026

Explanation

• Ocean water is not drinkable due to a high amount of sodium chloride (common salt).
• This salt makes water too salty for human consumption.
• Seawater also contains small amounts of other dissolved minerals.
• High salt concentration causes dehydration in the human body.

Last verified on 25-06-2026

Explanation

• A rectifier is an electrical device that converts Alternating Current (AC) into Direct Current (DC).
• It allows current to flow in only one direction.
• It is commonly used in power supplies and chargers.
• Rectifiers use components like diodes for conversion.

Last verified on 25-06-2026

Explanation

• Black Gold: Petroleum (Crude Oil)
• Color: Dark black / brownish black
• Main Uses: Fuel, petrol, diesel, kerosene, plastics
• Importance: Backbone of modern industry and transport

Additional information:

• Top Oil-Producing Countries:
  1. Saudi Arabia
  2. USA
  3. Russia
  4. Iraq
  5. Iran

Last verified on 16-06-2026

Explanation

• The mass of a proton is approximately 1836 times greater than the mass of an electron.
• A proton is a positively charged particle found in the nucleus of an atom.
• It has almost the same mass as a neutron (slightly less).
• Electrons are much lighter compared to protons.

Last verified on 22-06-2026