241 karma · joined May 11, 2011
High power radio transmissions have been used since the 40s.
The main reason there are such power limits is because electrical devices are tested to withstand certain levels of interference from external sources.
Mobile phone vary their transmitting power depending on how close they are to the tower, so they do not jam other signals and it allows them to save power. Most of the time they are operating at a fraction of their peak power, where maximum power output is only used to ping towers when signal is lost.
It's really easy to avoid sugar if you buy raw foods and actually cook, rather than convenience food. It's also cheaper. The solution is education.
There is no such thing as healthy food, only a diet which is healthy. You can eat so called healthy foods, but if you eat ecess calories your diet isn't healthy for you!
Yoga poses that appear to require strength are simply balancing with locked muscles. You have to be light and flexible for such things, but it doesn't require any strength.
I don't think there is any doubt that human activity is contributing to climate change.
It's ironic that modern civilization and population numbers aren't possible without fossil fuels, but their use will ultimately cause it's demise.
Humans are contributing to climate change, but the climate had constantly changed throughout history. During the peak to the Roman empire, parts of the Mediterranean are estimated to have been 2°C hotter than today. The climate cooling is one of the likely contributing factors behind the collapse of the Roman empire, as agricultural output fell as a result.
Climate change is bad for current human settlement and farming, as what is currently primar land for living and farming will change. Such a charge would have dangerous global economic and political consequences.
Most people do not do enough physical activity for it to make much of a difference either.
Fat people are discriminated against, but the question is how much should obesity be catered for, and what range in body size?
Alcoholics and drug addicts and are also discriminated against by society, so shouldn't these lifestyle choices also be protected by the law?
It works as a rough guide as it is easer to calculate than body fat percentage. Most people that go to the gym don't have much muscle; so unless someone is a dedicated bodybuilder or powerlifter it's good enough. You can tell just by looking at someone if they have large amounts of body fat!
Administering a vaccine to a large population is rather like the trolly problem, as to protect a large number of people you will have to risk a small number of casualties and deaths.