Re: Cooking was // Re: CS>Removing Silver Tarnish James McDonald Sun, 13 May 2012 08:20:39 -0700
> Mike, Most people don't understand radiation from 1Hz to gamma is > all radiation just different frequencies, some our bodies can > handle some it cannot. Lasers are a radiation, low power does not > hurt your hand hi-power will burn you. Its pretty much power > density. It also depends on the frequency of the radiation. Radiation from 1Hz to Violet light only heats an object. If the power is great enough, it will cause burns. High-power lasers are used to cut metals and fabrics with high precision. They are used in volume manufacturing to mark products like milk and other food containers. Ionizing radiation starts in the ultraviolet. Here, the damage is far more serious. Ultraviolet radiation from the sun can cause skin cancer and damage your vision. This why people wear skin cream and uv protected sunglasses. http://en.wikipedia.org/wiki/Ultraviolet#Harmful_effects X-Rays can penetrate completely through the body and show pictures of broken bones and bad teeth. X-rays can also cause cancer. Most sources recommend to limit the number of dental x-rays per year to minimize the risk. Operators wear lead shields to protect their bodies. http://en.wikipedia.org/wiki/X-ray#Health_risks Airline pilots experience more gamma radiation since they spend a lot of time above most of the Earth's atmosphere and lose the shielding effect. Astronauts have virtually no protection against gamma rays. This severely limits spaceflight to the vicinity of the Earth. Trips to Mars will be fantasies for a long time to come. http://en.wikipedia.org/wiki/Gamma_ray#Shielding The radiation from microwave ovens is far below the visible spectrum. It is far too weak to ionize tissue or cause damage like ultraviolet, x-ray and gamma radiation. Microwave energy can only heat an object like food. The damage to DNA from overheating it is the same no matter how the food is heated. Thanks, Mike Monett -- The Silver List is a moderated forum for discussing Colloidal Silver. Rules and Instructions: http://www.silverlist.org Unsubscribe: <mailto:[email protected]?subject=unsubscribe> Archives: http://www.mail-archive.com/[email protected]/maillist.html Off-Topic discussions: <mailto:[email protected]> List Owner: Mike Devour <mailto:[email protected]>
