The most difficult temperature riddlesTechnology quiz
The colour of the star corresponds to its temperature. Which one is the hottest?
You can tell the temperature of a star by looking at its color. The coolest stars are red, then orange, then yellow. Even hotter stars are white and then the hottest stars are blue. The surface temperature of our sun is 5777 Kelvin.
In what temperatures is the superconductivity observed?
in every temperature
it depends on the material used
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields, which occur in certain materials when cooled below a characteristic critical temperature. This quantum phenomenon is impossible to be explained by the classical physics.
What is the lowest recorded air temperature ever recorded on Earth (Vostok Station - Antarctica)?
Vostok Station is a Russian research station in inland Princess Elizabeth Land, Antarctica. Founded by the Soviet Union in 1957, the station lies at the southern Pole of Cold, with the lowest reliably measured natural temperature on Earth of −89.2°C (−128.6°F; 184.0 K)
At what temperature does water boil at the top of Mt Everest?
The boiling point of water depends on the pressure. On top of Mount Everest, the pressure is about 260 mbar (26.39 kPa) and the boiling point of water is 69 °C. (156.2 °F). In contrast, water can still remain liquid near deep hydrothermal vents, even if the temperature is very high.
What kind of material is this cooktop made of?
Glass-ceramic materials share many properties with both non-crystalline glass and crystalline ceramics. The negative thermal expansion of the crystalline ceramic phase can be balanced with the positive expansion of the glassy phase. At a certain point (~70% crystalline) the glass-ceramic has a net expansion near zero and can sustain repeated and quick temperature changes up to 1000 °C.