10 Fun Facts About Hot Things

Which planet in our solar system has the highest average surface temperature?

Despite being farther from the Sun than Mercury, Venus has the hottest surface temperature due to a thick atmosphere composed mostly of carbon dioxide, which creates a strong greenhouse effect.

What unit is used to measure the spiciness of chili peppers?

The Scoville scale, invented by American pharmacist Wilbur Scoville in 1912, measures the concentration of capsaicinoids, which are the chemical compounds responsible for the heat in chili peppers.

Which layer of Earth's atmosphere is generally considered the hottest?

Temperatures there can pass 2,000 °C, yet a thermometer would read below freezing at night because the gas is so thin it cannot conduct heat to it.

What is the theoretical lowest possible temperature, where particles have minimal kinetic energy?

Absolute zero is the theoretical point at which all atomic motion ceases, and it is defined as 0 Kelvin, which is equivalent to -273.15 degrees Celsius or -459.67 degrees Fahrenheit.

Which desert animal's humps are actually deposits of fat, not stores of water?

The one-humped dromedary makes up 94% of the world's camels; the wild two-humped Bactrian is critically endangered with fewer than 1,000 left.

Stars with which color are typically the hottest?

Astronomers grade stars O, B, A, F, G, K, M from hottest to coolest; blue O-type stars top the list while our yellow Sun is a middling G2.

In Greek mythology, who was the god of fire, metalworking, and craftsmanship?

Cast off Mount Olympus for his lameness, he became the smith of the gods and was equated with Vulcan by the Romans, whose name gives us the word volcano.

At sea level, roughly what temperature does pure water boil at?

The precise figure is 99.97 °C; at 1,905 metres of altitude water boils at only 93.4 °C, which is why mountain cooking takes longer.

Which type of traditional light bulb produces light by heating a filament until it glows?

An incandescent light bulb works by passing an electric current through a thin filament, usually made of tungsten, heating it to a high temperature until it emits light.

Power plants in Iceland and New Zealand tap the Earth's internal heat. What is this called?

Geothermal energy is a renewable energy source that harnesses the natural heat from within the Earth's crust, originating from the planet's formation and radioactive decay.