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 ...

In tribology, nanoscratch testing is used to evaluate the mechanical and tribological properties of materials by employing a nanoscale indenter. At this scale, size-dependent plasticity effects, ...

A material’s hardness relates to its mechanical resistance when subjected to mechanical indentation by another harder body. Diamond is considered the hardest natural material and is typically used for ...

That $10,000 Android we looked at a couple weeks back, the Vertu Ti, might not have been the most impressive phone in the specs department, but it did have one killer feature: a screen made of ...

HTC released a special edition its U Ultra flagship with a sapphire screen, and naturally everyone is curious if it's really as great as it sounds. Luckily Zack from the popular YouTube channel ...