Explanation

• Jupiter's diameter is about 11 times the diameter of Earth.
• Jupiter is the largest planet in our solar system.

Last verified on 30-03-2026

Explanation

• Distance from Equator to either pole is about 10,002 km.

Additional information:

• Total Earth circumference: ~40,008 km
• Earth radius (approx): ~6,371 km
• Latitude of Equator: 0°
• Latitude of Poles: 90°

Last verified on 30-03-2026

Explanation

• Red stars (Red Dwarfs) are the coolest stars in the universe.
• Their surface temperature is around 3000°C (5400°F).
• Red dwarfs burn their fuel very slowly, lasting trillions of years.

Last verified on 19-03-2026

Explanation

• Galileo Galilei is credited with creating his own improved version of the telescope in 1609.
• It based on the design of the "Dutch perspective glasses".
• He was the first to observe moons of Jupiter, Saturn’s rings, and lunar craters through a telescope.

Last verified on 19-03-2026

Explanation

• A black hole is a region of space where matter has collapsed in on itself.
• It creating an incredibly dense and gravitational field so strong that not even light can escape.
• Black holes are detected via gravitational effects on nearby stars or X-ray emissions.
• Famous example: Sagittarius A* at the center of the Milky Way.

Last verified on 19-03-2026

Explanation

• Sirius means صبح کا ستارہ
• Sirius, also called the Dog Star.
• It is the brightest star in the night sky visible without a telescope.
• It is located in the constellation Canis Major.
• It is about 8.6 light-years from Earth.

Last verified on 19-03-2026

Explanation

• Earth is located in the Milky Way Galaxy.
• It a spiral galaxy containing hundreds of billions of stars.
• Our Solar System is one of the many systems within this galaxy.

Last verified on 19-03-2026

Explanation

• Copper is an excellent conductor of heat.
• It having a high thermal conductivity (386 W/mK).
• This means it can efficiently transfer heat energy with minimal resistance.
• Metals (e.g., iron, copper, silver, mercury, aluminum) are good conductors of heat.

Last verified on 19-03-2026

Explanation

• In liquids and gases, heat is mainly transferred by convection.
• Convection involves the movement of particles carrying heat from one place to another.
• Essential for weather patterns, ocean currents, and heating systems.

Last verified on 19-03-2026

Explanation

• Noise intensity is measured in decibels (dB).
• It indicates the loudness of sound.
• It helps assess noise pollution in cities, industries, and traffic areas.
• Noise pollution affects hearing, stress levels, and sleep.
• Reducing exposure above 85 dB is important for health protection.

Last verified on 19-03-2026