A laser typical of a 3D printer metal alloy printer oscillates heavily forming a “J” shaped keyhole which is unstable and collapses frequently leaving behind pores (top). When an appropriate ...

This allowed them to see the creation of small keyhole-shaped pores in the component as a result of the vapour generated when the laser melted the metal alloys, and the cause of instabilities in ...

She became convinced she was the missing girl - driven by similarities of them both in sketches and also the fact they both had a rare eye abnormality that makes the iris appear keyhole shaped.

For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails A woman who claimed to be Madeleine McCann has been ...

This allowed them to see the creation of small keyhole-shaped pores in the component as a result of the vapor generated when the laser melted the metal alloys, and the cause of instabilities in the ...

A coloboma can't always be seen, particularly if it occurs inside the eye. With that said, most cases involved the iris, causing a notable gap that gives the pupil a keyhole or cat's-eye-like ...