Now ask kids, what is heaviest – a pound of feathers or a pound of gold? The answer is they weight the same – they both weight one pound.However, the amount of space the feathers take up would be greater as you’d need more feathers to make a pound. Thedensityof the gold is hi...
The atomic observations were done using real-time transmission electron microscopy. Surprisingly, even though MoS2 is a brittle material, the team saw atom dislocations three to five nanometers (nm) away from the front line of the crack, or crack tip. This observation cannot be explained with t...