Explanation

• A picosecond (ps) is equal to 10⁻¹² seconds.

Additional information:

• Millisecond = 10⁻³ second
• Microsecond = 10⁻⁶ second
• Nanosecond = 10⁻⁹ second

Last verified on 08-09-2026

Explanation

• Seismology is the study of earthquakes and seismic waves that move through and around the Earth.
• A seismologist is a scientist who studies earthquakes and seismic waves.

Last verified on 03-04-2026

Explanation

• Marie Curie is the only person to win Nobel Prizes in two different natural sciences.
• She won the Nobel Prize in Physics in 1903.
• She won the Nobel Prize in Chemistry in 1911.
• She was awarded for her pioneering work on radioactivity.

Last verified on 06-09-2026

Explanation

To convert Celsius to Kelvin, use: K = °C + 273

• Given temperature = 37°C
• 37 + 273 = 310 K

Additional information:

• 0°C = 273 K
• 100°C = 373 K

Last verified on 06-09-2026

Explanation

• Stellar parallax is the apparent shift in the position of a nearby star as Earth moves around the Sun.
• It occurs because the star is observed from different positions in Earth's orbit.
• Astronomers use parallax to measure distances to relatively nearby stars.
• The greater the parallax, the closer the star is to Earth.

Last verified on 05-09-2026