Explanation

• Venus comes closest to Earth when it is between Earth and the Sun.

• Minimum distance: about 24 million miles (≈ 38 million km).

• This close approach occurs roughly every 584 days.

Additional Information:

• Mercury can be about 33 million miles away when Venus is on the far side of the Sun.

Last verified on 17-01-2026

Explanation

• The magnitude of an earthquake is measured by the Richter scale.
• It measures the energy released by an earthquake.
• The Richter scale was developed in 1935 by Charles F. Richter.
• It is used in seismology (the study of earthquakes).

Last verified on 30-06-2026

Explanation

🔹 1 BTU = 1055.06 Joules (approx.)

🔹 1 BTU = 252 calories (approx.)

🔹 1 Joule = 0.0009478 BTU

🔹 1 kWh = 3412 BTU, linking electrical energy to heat energy.

🔹 Commonly used in heating/cooling systems

🔹 Named after the British engineers who developed early thermal measurements

Last verified on 30-06-2026

Explanation

• Speed: ~300,000 km/s (exactly 299,792 km/s)
• Symbol: c
• Medium: Vacuum (space)
• Type: Electromagnetic waves
• Constant: Universal physical constant

Last verified on 16-05-2026

Explanation

• Nitrogen (N₂) → 78%

Additional information:

• Oxygen (O₂) → 21%
• Argon (Ar) → 0.93%
• Carbon dioxide (CO₂) → 0.04% (approximately)
• Other gases → Trace amounts

Last verified on 28-06-2026