During femtosecond laser fabrication, photons are mainly absorbed by electrons, and the subsequent energy transfer from electrons to ions is of picosecond order. Hence, lattice motion is negligible ...

A muscle strain happens when a muscle is overstretched or torn, often from poor conditioning, fatigue, or skipping a warmup. Common spots include the lower back, neck, shoulder, and hamstring. The ...

Compare the best variable mortgage rates offered by Canada's top bank and non-bank lenders. Many or all of the products on this page are from partners who compensate us when you click to or take an ...