Where will this fall? Can they guide it? Radioactive and other contamination. Do you feel safe?

news.yahoo.com/russias-mars-probe-crash-... Asked by Shasha 23 hours ago Similar questions: fall guide Radioactive contamination feel safe Science > Chemistry.

Similar questions: fall guide Radioactive contamination feel safe.

VERY safe, me thinks you are too paranoid Shasha.

Most people may not think anything can happen in life like this...but it is falling. Shasha 22 hours ago .

We just had a satellite hit in Sept, no one got hurt. foxnews.com/scitech/2011/09/23/huge-tumb... com/scitech/2011/09/23/huge-tumbling-satellite-expected-to-fall-to-earth-friday-night-nasa-says.

Thanks for the article. Happiness... Shasha 5 hours ago .

Things fall out of the heavens all the time, some natural and some man made. While most stuff burns up in the atmosphere, some of the larger pieces make it to earth. A study done in 1996, led by P.A.Bland and published in "Monthly Notices of the Royal Astronomical Society", estimated that between 36 and 166 meteorites larger than 10 grams (slightly more than one-third ounce) fall to Earth per million square kilometers per year.

Over the whole surface area of Earth, that translates to 18,000 to 84,000 meteorites bigger than 10 grams per year. While that sounds like a lot, given that the surface area of the Earth is 510 million square kilometers, the worst case probability that a meteor might have landed within one kilometer of where you lived in 1996 by my calculation would be 0.000164706 8.4 x 10^4 / 5.1 x 10^8 = 1.65 x 10^-4. Then you need to divide that number by 1,000 to determine how likely it would land on the meter you stood upon.

Since the number of manmade objects in orbit is but a fraction of the thousands of meteorites that reach earth, the few that fall do not change the risk.0.000164706 / 1,000 = .000000164706, which is slightly better than one in six million. This risk, added to the innumerable risks that we face daily, is insignificant (imho). curious.astro.cornell.edu/question.php?n... php?

Number=470.

Thanks for explaining it in detail! Shasha 20 hours ago .

It is important to remember that many things may become toxic when their concentration is great enough. It would be unhealthy to breathe pure oxygen for an extended period, for example. Conversely, things we think of as poisonousness in small amounts are beneficial.

The same chemical used to kill rats (warfarin) is used as a blood thinner in humans. The same thing is true of the toxic fuel. Likewise, depending upon the concentration, radiation can be hazardous, beneficial or have no effect upon the human body.

While I wouldn't want to handle any pieces of debris from the Russian satellite that make it to earth, I would have no fear of standing a few feet away from the remains. Lastly, the public has an unreasonable fear of radiation. All radiation is in the form of packets of electromagnetic energy called photons.

The only difference between the light radiating from an incandescent bulb and gamma radiating from Plutonium-239 is the energy their photons carries. The difference is something like being hit with a pound of feathers versus a pound of lead. I hope I have put your mind at ease, at least regarding the falling satellite.

Ionizing radiation can hurt people compared to light radiation that may not hurt. I agree it maybe diluted eventually and burned up/spread out. I pray for the best.

Thanks! Shasha 5 hours ago .

Very, very safe. The AP story you point to has a big mistake, it says there are "10 kilograms (22 pounds) of Cobalt-57" radioactive material on the satellite. The correct unit is MICROGRAMS, millionths of a gram, not Kilograms.

Wrong by a factor of one billion. The odds that debris from the recent UARS reentry would hurt anyone on Earth was 3,200 to 1. The Phobos-Grunt probe has a similar mass predicted to survive all the way to the surface, so I'm guessing similar odds.

That means the chance it hits me is 7,000,000,000 x 3,200 = 22,400,000,000,000 to 1.

Interesting! Being large I figured maybe some of it may survive. I would think it would have a large amount of nuclear fuel to last a long time in space.

I pray it burns up totally...all the toxic material and will not hurt anyone. Thanks. Shasha 5 hours ago .

Let say I like guy when I feel near him I feel sparking or when he ho" "What exciting and safe chemistry experiments can be done with the following available chemicals" "Do you feel safe?" "Are Japan made products (i. E electronics) safe from radioactive contamination?

Let say I like guy when I feel near him I feel sparking or when he ho.

What exciting and safe chemistry experiments can be done with the following available chemicals.

Are Japan made products (i. E electronics) safe from radioactive contamination?

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.