Two British airliners found to have radiation on board how did it get there?
957156
Both planes came from Moscow, and Fox News is reporting that another one is grounded in Moscow with suspected Radiation on board. It would appear that someone has purchased some polonium for use as a terrorist tool. this could easily turn int a major issue between Russia and the rest of the world especially the US.
995653
Several other situations expose you to more excess radiation than radiology work; living at high altitude (more cosmic rays and solar radiation), working underground (more radon gas), living in a region where there's a lot of granite, which contains uranium and thorium, and living near the north or south magnetic poles, because the Earth's magnetic field concentrates radiation from space into these regions.   The most dangerous job, from the radiation point of view is being an astronaut.   One reason why Concorde never flew to Japan or Korea from Europe through Anchorage was that the crew would have received an unacceptably high dose of radiation.
151777
Information about Flight 77:\n\nhttp://sadnews.net/ctz/0Mem/20010911/AA77-2001.htm
1023510
All of the really really radioactive material that was airbourne has probably decayed to below background levels. The amount of radiation in the atmosphere today is greater than it was before nuclear testing in the 1940s, so it's clrearly possible for material to hang around.\n\nI suspect there is still material from chernobyl in our atmosphere, but it is now part of the background level and not dangerous.
990921
MAJOR SPOILER\n\nI have heard that the numbers that keep appearing are coordinates to a small island near micronesia where nuclear testing was done.  The hatch houses the nuclear radiation or something and they have to keep pressing the numbers into the computer so the radiation can be let off safely.  However someone (possibly desmond) didn't put in the numbers and the radiation spewed out, and thats what brought down the plane.  which also means the sickness could be radiation poisoning!  Also two characters die.  Here's a clue.  They both were charged with drink driving
488611
you cannot see it very good, but it seems to low for a plane for the explosion to happen that high and destructive. did you also see the picture of the 747 hittin the north tower, it had a mysterious black shape underneath the cargo area, people believe that was a conspiracy and it was a bomb. i would know i was there
323090
Alpha, beta and gamma radiation is radioactive radiation. It is cause by unstable atoms "decaying" to become stable atoms. Alpha and beta partciles are Protons and Electrons respectively whilst gamma radiation is very very high frequency "electromagnetic radiation." \nNon radioactive radiation is sound, heat, light..
356811
Cherenkov radiation is Electromagnetic (non-ionising) radiation emitted when a charged particle (e.g. an Electron ) passes through a medium (e.g. water) at a speed greater than that of light in the medium. This can be seen as the characteristic "blue glow" where sources of large activity (e.g. irradiator sources or spent nuclear fuel) are stored under water.\n\nI too have recollections that Cherenkov radiation is primarily asscoiated with Caesium, but I haven't managed to find any confirmation of this.
766097
They all put out radiaton which can cause cancer
952996
my grandfather worked in area 51 for 3 years. my own grandma didnt even know it until after he died. the secrets run deep out there, but what she figured out was they were testing experimental aircraft. the secrecy is for our national security. my grandfather designed electrical blueprints for aircrafts. the stealth bomber was one of his "projects".
437815
The previous post is pure bunk.\n\nMillions of dollars have been spent and thousands of people have been tracked and interviewed over decades in an attempt to scientifically prove or disprove a link between ill health and electromagnetic fields. And guess what? They can't find one. There is no known biological mechanism for the low-level radiation from power lines to damage DNA. \n\nPeople used to worry about the same things resulting from the use of microwave ovens, but I guess that scare has passed. The low level radiation from power lines is even less than that emitted by microwaves. Radiation from cell phones isn't a health issue, either.\n\nHere's a relevant passage from Christopher Wanjek's "Bad Medicine: Misconceptions and Misuses Revealed, from Distance Healing to Vitamin O":\n\n"Many folks seem to equate all kinds of radiation with the dangerous kind, called ionizing radiation. This type of radiation is energetic enough to knock an electron loose from an atom. Many types of radiation pass through our bodies all the time. Although you cannot shine a flashlight (visible light) through your chest, radio waves and microwaves will pass through easily enough. Ionizing radiation also passes through you, but it can damage the atoms in your cells as it travels, knocking loose an electron from a DNA molecule. Ultraviolet light is ionizing radiation; too much of it causes skin cancer. X rays and gamma rays are also ionizing. Too many X-ray exams can lead to organ cancers. Fortunately, the nastiest forms of ionizing radiation are produced in deep space, and the earth's atmosphere blocks most of this from reaching the earth's surface (although that hole in the ozone layer is letting in more UV). ...Over 80% of the ionizing radiation we encounter day to day comes from natural sources: cosmic rays, which are atomic particles from space; and alpha and beta particles from radioactive gas, namely radon. ...Medical X rays account for about all the rest of our ionizing radiation exposure."\n\nYou don't have to move, and no one's brain is being harmed.
427073
I was less than a quarter mile away from the Pentagon and I was looking right at that plane--- normal commercial airliner--- when it went in. I'm usually all about the conspiracy theories but this one is bunk.  I smelled the jet fuel burning and saw the bits of plane fall from the sky along with people's clothes from their exploded luggage.
802571
wow...in 1968 i watched what appeared to be a shiny metallic piece of  crumpled metal tumble towards earth for 10 minutes, it was probably space debris or toilet ejecta from a passing airliner.what you seen was likely hardboard insulation like they use on construction sites, that stuff will fly a long ways with little wind....or else it was a runaway magic carpet
1095950
No Smoke!  They are called contrails(condensation trails)\n\nContrails are created in one of two ways:\n\n1. First, the airplane's exhaust increases the amount of moisture in the air, which can push the water content of the air past saturation point. This causes condensation to occur, and the contrail to form.\n\nAviation fuel such as petrol/gasoline (piston engines) or paraffin/kerosene (jet engines) consists primarily of hydrocarbons. When the fuel is burned, the carbon combines with oxygen to form carbon dioxide; the hydrogen also combines with oxygen to form water, which emerges as steam in the exhaust. For every gallon of fuel burned, approximately one gallon of water is produced, in addition to the water already present as humidity in the air used to burn the fuel. At high altitudes this steam emerges into a cold environment, (as altitude increases, the atmospheric temperature drops) which lowers the temperature of the steam until it condenses into tiny water droplets and/or desublimates into ice. These millions of tiny water droplets and/or ice crystals form the contrails. The temperature drop (and therefore, time and distance) the steam needs to condense accounts for the contrail forming some way behind the aircraft's engines.\n\n2. The wings of an airplane cause a drop in air pressure in the vicinity of the wing (this is partly what allows a plane to fly). This drop in air pressure brings with it a drop in temperature, which can cause water to condense out of the air and form a contrail.\n\nExhaust contrails tend to be more stable and long-lasting than wing-tip contrails, which are often disrupted by the aircraft's wake and are commonly very short-lived.
651184
Cherenkov radiation results from particles traveling faster than the speed of light _in a medium_. The particles are still not traveling faster than THE speed of light, which is more fully described as the speed of light in a vaccuum. Thus, the only implications of this is that the water tanks around nuclear reactors glow blue (which, if you haven't seen it, is really freaking cool).
689133
gamma radiation i think. alpha and beta are relatively weak.
280905
During some nuclear tests, they wanted to see how air moved near the explosion.  Just before the detonation, they launched rockets that produced a lot of smoke in their exhaust.  These smoke trails served as reference lines so they could see how the air moved.  I always wondered about this, too, until I recently saw this explanation.  I'm sorry I don't remember the source.\n\nWhat is really weird is some of the Howard Edgerton images of the first few instants of A-bomb explosions where the electric current induced in the tower guy wires is vaporizing the wires!  See the 7th photo.