The main protection, in the event of a serious leak from the primary reactor circuit, is the secondary containment structure, which you most obviously see in photos as the dome over the reactor building, but is in fact a complete barrier around the reactor.
Concern 1. Nuclear meltdown. If correct maintenance is not observed, the core may overheat and eventually melt. This will cause the escape of radiation. Concern 2. Disposal of contaminated equipment and fuel rods. These are very hazardous and environmentally unsound. Concern 3. The waste products from a nuclear power plant can be used to create weapons of mass destruction, and therefore must be disposed of properly.
The Answer is "Black Hole"
I'm pretty sure that nuclear energy is not as safe to use as solar energy is. I wonder if the Japanese people are anxious to escape their reliance on nuclear energy, now that they have experienced a serious meltdown event.
Nuclear power does not contribute to global warming! However nuclear power generated in the Earth' core warms the planet. The thermal energy generated in the core from nuclear fission keeps the planet warmer than the solar black-body radiation balance.
Both visible light and microwave radiation are different variations of the same electromagnetic energy. Visible light has infinitesimally small wavelengths, and therefore it can pass through the screen holes. Microwave radiation has much larger wavelengths, and these wavelengths are too big to "fit" through the screen holes, and therefore the screen appears solid to the microwave radiation. The microwave radiation is therefore completely reflected by the screen.
All sorts of nuclear radiation are dangerous. To use nuclear power safely the radiation in the reactor core must not be allowed to escape. Provided this is achieved, it is a safe industry. The health records of those who work on nuclear sites proves this.
The reactor is not Egg like. It is the Containment area that is egg like, So no steam or nuclear radiation cannot escape.
Insulation.
Airbag
If you are asking about how do I get out of somewhere, then I would say that it can mean, "are there doors nearby, it there a fire-escape, how can I get out of the car if I have an accident"?
air bag
A black hole.
No. Once the nukes were launched, there is no chance to escape. Hope that nuclear weapons are not going to be launched.
Concern 1. Nuclear meltdown. If correct maintenance is not observed, the core may overheat and eventually melt. This will cause the escape of radiation. Concern 2. Disposal of contaminated equipment and fuel rods. These are very hazardous and environmentally unsound. Concern 3. The waste products from a nuclear power plant can be used to create weapons of mass destruction, and therefore must be disposed of properly.
The Answer is "Black Hole"
Miracle Mile?
They use nuclear fusion and the iron makes light escape.