It might not seem like scraping the top of a cold stick of butter with a knife could be a scientific test, but engineers say the process is very similar to the "scratch test," which is perhaps the ...

It might not seem like scraping the top of a cold stick of butter with a knife could be a scientific test, but engineers at MIT say the process is very similar to the "scratch test," which is perhaps ...

For some context, in Zack’s previous videos on devices typically using Gorilla Glass 4, it usually takes a 5 or 6 hardness pick before scratches occur. But in the Note 7 video, non-removable marks are ...