Coldest temperature achieved on earth
Okay kiddo, have you ever noticed that when it's really cold outside, you can see your breath and your nose gets all chilly? Well, scientists have found a way to make things even colder than that!
Now, to understand how cold it can get, we need to talk about something called "absolute zero." Absolute zero is the coldest temperature there can possibly be, and it's around -459.67 degrees Fahrenheit or -273 degrees Celsius. That's really, really, REALLY cold!
Scientists have been trying to get as close to absolute zero as they can, and one way they do it is by using something called "cryogenics." Cryogenics is when they use super cold gases, like liquid helium or liquid nitrogen, to make things really, really cold.
The coldest temperature ever achieved on Earth was actually made in a lab using a process called "Doppler cooling." Basically, they used lasers to slow down atoms of gas and then cool them even further with liquid helium, until they were just a tiny fraction above absolute zero. The temperature they achieved was -459.6 degrees Fahrenheit or -273.1 degrees Celsius. That's so cold that even the atoms barely move!
So, in summary, the coldest temperature ever achieved on Earth was just a tiny fraction above absolute zero, which is the coldest temperature there can possibly be. Scientists used lasers and super cold gases to reach this temperature, and it's so cold that even atoms barely move.
Now, to understand how cold it can get, we need to talk about something called "absolute zero." Absolute zero is the coldest temperature there can possibly be, and it's around -459.67 degrees Fahrenheit or -273 degrees Celsius. That's really, really, REALLY cold!
Scientists have been trying to get as close to absolute zero as they can, and one way they do it is by using something called "cryogenics." Cryogenics is when they use super cold gases, like liquid helium or liquid nitrogen, to make things really, really cold.
The coldest temperature ever achieved on Earth was actually made in a lab using a process called "Doppler cooling." Basically, they used lasers to slow down atoms of gas and then cool them even further with liquid helium, until they were just a tiny fraction above absolute zero. The temperature they achieved was -459.6 degrees Fahrenheit or -273.1 degrees Celsius. That's so cold that even the atoms barely move!
So, in summary, the coldest temperature ever achieved on Earth was just a tiny fraction above absolute zero, which is the coldest temperature there can possibly be. Scientists used lasers and super cold gases to reach this temperature, and it's so cold that even atoms barely move.
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