Ultrasound may heal damaged lungs

The energy from ultrasound might be used to heal small tears in lung tissue. Such injuries are caused by crushing or puncture wounds, which can be caused by car accidents. A study, “Hemostasis and Sealing of Air Leaks in the Lung Using High-Intensity Focused Ultrasound,” is published in the June 2007 issue of Trauma. In experiments of pigs’ lungs, focused energy from ultrasound heated the blood cells and helped them to seal 95% of incisions in two minutes.

A petroglyph for Michigan?

The state of Michigan has only two known petroglyphs (ancient rock paintings or carvings). Local archaeology buffs are excited about possible new one. They have found something that looks like a carving of a mastodon on a rock, discovered 40 feet (13 m) underwater by scuba divers.

However, everyone is being cautious until an expert with underwater qualifications can examine it, because it’s easy for the mind to see a pattern in random marks. They’re not jumping to conclusions.

UPDATE: Here’s the article from the Lansing State Journal for September 5: “Lake Michigan rock may have ancient carving of mastodon.” Jump to the article for details and a picture in context.