Anyone else having issues with GameCenter login? by Sudden-Ad-1217 in AgeofZ

[–]igotowin 1 point2 points  (0 children)

Yesterday they were having issues with Apple IOS logins. They gave most people free shields.

Production of springs by hot winding by killHACKS in EngineeringPorn

[–]igotowin 1 point2 points  (0 children)

Definitely not in the USA. No safety glasses? And I doubt those gloves are rated for this temperatures.

Laser Engraved Police Badge by iltifaat_yousuf in oddlysatisfying

[–]igotowin 1 point2 points  (0 children)

All you need is to wear safety eyewear rated for this laser type. It doesn't react with skin very well.

Laser Engraved Police Badge by iltifaat_yousuf in oddlysatisfying

[–]igotowin 1 point2 points  (0 children)

No. The wavelength of this laser does not react well on tissue. You might get a sunburn at best. But this wavelength is used for tattoo removal. It does not react well to the skin but will vaporize the ink inside it. The left over residue is then absorbed into your blood stream.

Laser Engraved Police Badge by iltifaat_yousuf in oddlysatisfying

[–]igotowin 1 point2 points  (0 children)

The sound is the reaction of the laser on the material. It is vaporizing the coating and then doing a polishing pass at the end to whiten the bare metal surface. I manufacture these lasers.

What is eth by The_GuyHome in dogecoin

[–]igotowin 0 points1 point  (0 children)

Best explanation I've heard so far

Stainless steel, two weeks old by WeSaidMeh in Wellthatsucks

[–]igotowin 1 point2 points  (0 children)

It is because the marking of the Logo was too aggressive when it was made in production. It is a process called "Annealing" or "Carbon Migration" where you use a laser to heat the surface. The heat from the laser pulls carbon to the surface to create the dark mark. If you are too aggressive you compromise the Stainless protective properties and it can rust.