Alexander Goeres 𒀯the high temperatures in europe are really annoying and inconvenient. but this is horrible
Daytimes highs have repeatedly crossed 45C across the country in the past two weeks, with Banda in Uttar Pradesh recording a maximum of 48.2C last Tuesday
and ever since i heard about this phenomenon of wet bulb temperature (#^https://en.wikipedia.org/wiki/Wet-bulb_temperature) i'm positively scared.
because this means that there is a temperature where sweating doesn't cool you anymore. hiding in the shade and getting in front of a fan won't help then. and this temperature is not as high as i had imagined. the relation of heat and humidity in the air defines the lowest possible temperature your body can achieve by evaporating water, i.e. sweating. and if this lowest value exceeds 35°C (you fahrenheiters go look it up yourself) you are in serious health trouble. the young and the old, of course, but everybody else, too. heat gets lethal above this temperature.
it is a dynamic relation, you can check it here: #^https://www.omnicalculator.com/physics/wet-bulb
play around with it a little bit:
* 40°C + 80% relative humidity -> 36.73°C
* 45°C + 60% relative humidity -> 37,5°C
i posted about this before, but this needs much more coverage.
#klima #wet-bulb-temperature #FeuchtkugelTemperatur
#^Why India’s heatwaves feel more brutal than ever as warnings issued
Doctors say hospitals are filling up with patients suffering from heat exhaustion and other heat-related conditions, with people unable to find any respite at night. Stuti Mishra reports from Delhi
Daytimes highs have repeatedly crossed 45C across the country in the past two weeks, with Banda in Uttar Pradesh recording a maximum of 48.2C last Tuesday
and ever since i heard about this phenomenon of wet bulb temperature (#^https://en.wikipedia.org/wiki/Wet-bulb_temperature) i'm positively scared.
because this means that there is a temperature where sweating doesn't cool you anymore. hiding in the shade and getting in front of a fan won't help then. and this temperature is not as high as i had imagined. the relation of heat and humidity in the air defines the lowest possible temperature your body can achieve by evaporating water, i.e. sweating. and if this lowest value exceeds 35°C (you fahrenheiters go look it up yourself) you are in serious health trouble. the young and the old, of course, but everybody else, too. heat gets lethal above this temperature.
it is a dynamic relation, you can check it here: #^https://www.omnicalculator.com/physics/wet-bulb
play around with it a little bit:
* 40°C + 80% relative humidity -> 36.73°C
* 45°C + 60% relative humidity -> 37,5°C
i posted about this before, but this needs much more coverage.
#klima #wet-bulb-temperature #FeuchtkugelTemperatur
#^Why India’s heatwaves feel more brutal than ever as warnings issued
Doctors say hospitals are filling up with patients suffering from heat exhaustion and other heat-related conditions, with people unable to find any respite at night. Stuti Mishra reports from Delhi
