Sunrise occurs when upper rim of Sun appears on horizon in morning. Sunrise occurs when Sun's center is 50 arcminutes below horizon. Timing varies yearly due to Earth's rotation and axial tilt. Sunrises occur approximately due east on equinoxes
World's average surface air temperature is about 14°C. Thermometers are placed 1.25-2m above ground in Stevenson screens. Temperature is measured using discrete readings or daily minimum/maximum averages
Atmospheric pressure is the force per unit area within Earth's atmosphere. Standard atmosphere (atm) equals 101,325 Pa or 14.696 psi. Pressure decreases with increasing altitude due to less overlying mass
Isolated storms move about 20 km/h, supercells up to 80 km/h. Energy comes from latent heat released during water condensation. Typical thunderstorm energy is 10^7 kilowatt-hours. Large multicell storms can be 10-100 times more energetic
Pubs originated in Roman Britain as food and lodging establishments. Pubs offer warm atmosphere with wooden furnishings and dim lighting. Pubs serve traditional food and drinks, often featuring local specialties. Pubs provide entertainment like quiz nights and karaoke
Martian atmosphere contains 96% carbon dioxide, 1.9% argon, and 1.9% nitrogen. Surface pressure averages 600 pascals, ranging from 30 to 1,155 pascals. Atmosphere is dusty, giving sky light brown or orange-red color. Atmosphere mass is 25 teratonnes, compared to Earth's 5148 teratonnes