

That’s a phase change triggered by a seed crystal (generated from a physical shock from the ‘clicker’) where the transition from liquid to solid phases returns the latent heat that was previously added to turn it from solid to liquid.
There is no phase change in this material, it remains a solid and changes temperature depending on how much pressure is applied to it.











I have MX Linux on a 14 year old Dell Laptop.
Works great because it’s got a lightweight desktop, and it has a tool (a GUI tool even!) that seamlessly merges the last available Nvidia 340 drivers for my GPU into the latest kernel. Parked at the desktop with no desktop apps running, it uses about 800MB of ram, leaving 15 GB left for whatever I need to run. Which I have found is plenty for my use case, I’ve never seen swap in use.
The MX tools are good, like everyone else has been saying here. They take away a lot of the fiddly business associated with the average “sysadmin” things that an end user needs to do.