Comment Safety of these ultrasonic output (Score 1) 33
It's probably several orders of magnitude different in energy output, but I would still like to think some accountable government organization signed off on this usage - not just the company feeling that its okay. After all, if you are playing detectable music too loud then you can hear it and your ears start hurting. In this case there would be no warning signs until damage was done. The FDA did years of testing on prenatal ultrasound devices before they became routine in their usage. So who do these companies go to for verifying the safety of this technology before deployment. Or is just the honor system?
This kind of reminds me of the deployment of back scatter x-ray machines for security at U.S. airports that had not been studied for dosing amounts on humans (and ended up giving extremely high exposures). There are news stories from 2010 speaking about the controversies regarding the health effects of the machines, but there are also news stories in 2007 about the machines being deployed and I believe there were limited deployments between 2003 and 2005 (if memory serves me correctly). NOTE: I used google news to search up the old articles.