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Normally, in the presence of radiation, communication links fail. But with autonomous robots, you don't need communications.
The study of celestial phenomena at radio wavelengths, radio astronomy came into being after the accidental discovery of cosmic radiation by radio engineer Karl Jansky in 1933.
In America, we have always taken it as an article of faith that we 'battle' cancer; we attack it with knives, we poison it with chemotherapy or we blast it with radiation. If we are fortunate, we 'beat' the cancer. If not, we are posthumously praised for having 'succumbed after a long battle.'
That's a tumor. It goes across my liver, up through my lungs, all the way around my heart. And when they were done trying to cut it out, nuke it out with radiation and chemotherapy it out, it left so much scar tissue that when I walk outside now in cold weather and take a deep breath, it feels like someone is stabbing me.
Since we can produce all types of light by means of hot bodies, we can ascribe, to the radiation in thermal equilibrium with hot bodies, the temperature of these bodies, and thus every radiation, even that issuing from a phosphorescent body, has a certain temperature for every colour.
It's very dangerous to put astronauts on a moon base where there's radiation, solar flares and micro meteorites. It'd be much better to put robots on the moon and have them mentally connected to astronauts on the Earth.
There's almost no food that isn't genetically modified. Genetic modification is the basis of all evolution. Things change because our planet is subjected to a lot of radiation, which causes DNA damage, which gets repaired, but results in mutations, which create a ready mixture of plants that people can choose from to improve agriculture.
For so long, the mainstays of cancer treatment have been chemotherapy and radiation. They're toxic and primitive. We need to look at it in a rational way and say, how can we help the body heal itself?
Black holes are pretty scary when you ponder them. They seem nihilistic, infinitely destructive on an inconceivable scale, notwithstanding the ideas of Hawking radiation.
The radiation left over from the Big Bang is the same as that in your microwave oven but very much less powerful. It would heat your pizza only to minus 271.3*C - not much good for defrosting the pizza, let alone cooking it.
I'm happy to tell you that having been through surgery and chemotherapy and radiation, breast cancer is officially behind me. I feel absolutely great and I am raring to go.
I am a type-2 diabetic, and they took me off medication simply because I ate right and exercised. Diabetes is not like a cancer, where you go in for chemo and radiation. You can change a lot through a basic changing of habits.
Nobody could tell us or really had a very good idea, if there were a massive release of radiation, what kind of medical treatment people were going to need and this or that, or, indeed, whether there would be medical personnel around.
There were schools and hospitals who were ready to take people with undescribed injuries, but not necessarily ready to take people with severe radiation poisoning.
The doctors realized in retrospect that even though most of these dead had also suffered from burns and blast effects, they had absorbed enough radiation to kill them. The rays simply destroyed body cells - caused their nuclei to degenerate and broke their walls.
The worst situation with radiation escaping is if you are downwind from it. You could virtually be on one side and not affected by the radiation. If you're on the other side and you're downwind from it, you are going to be affected.
Radiation doesn't recognize borders. A meltdown in Japan or India, say, is a danger to the whole world. Wind circulates the radiation everywhere. Water quality is affected. We all eat the same fish. We use products from all over the world - if something is contaminated, it will cause harm.
Too many radiologists still believe there is a risk from a chest x-ray. Few radiologists can explain radiation to the patient in words the patient can understand.
In the Radiation Laboratory we count it a privilege to do everything we can to assist our medical colleagues in the application of these new tools to the problems of human suffering.
I was diagnosed with Graves' disease, an illness of the thyroid gland. Instead of surgery, I was given radiation treatment.
Each year, at the typical nuclear reactor in the U.S., there's a 1 in 74,176 chance of an earthquake strong enough to cause damage to the reactor's core, which could expose the public to radiation. No tsunami required.
Only black holes of very low mass would emit a significant amount of radiation.
My discovery that black holes emit radiation raised serious problems of consistency with the rest of physics. I have now resolved these problems, but the answer turned out to be not what I expected.
In mid-July 2007, after a routine mammogram, I was diagnosed with breast cancer. As cancer diagnoses go, mine wasn't particularly scary. The affected area was small, and the surgeon seemed to think that a lumpectomy followed by radiation would eradicate the cancerous tissue.
At my age, the radiation will probably do me good.
Many people who did not die right away came down with nausea, headache, diarrhea, malaise, and fever, which lasted several days. Doctors could not be certain whether some of these symptoms were the result of radiation or nervous shock.
Martin Luther King, Jr.
Leonardo da Vinci
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We should not give up and we should not allow the problem to defeat us.
A. P. J. Abdul Kalam
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