Space shuttle Discovery flies around the orbiting orbiting International

Rest breaks - a break during your working day

If you are an adult worker (that is, over 18), you will normally have the right to a 20 minute rest break if you are expected to work for more than six hours at a stretch.
A lunch or coffee break can count as your rest break. Additional breaks might be given by your contract of employment. There is no statutory right to 'smoking breaks'.
The requirements are:
• the break must be in one block
• it cannot be taken off one end of the working day - it must be somewhere in the middle
• you are allowed to spend it away from the place on your employer's premises where you work
• your employer can say when the break must be taken, as long as it meets these conditions
Daily rest - a break between working days
If you are an adult worker you have the right to a break of at least 11 hours between working days. This means as an adult worker, if you finish work at 8.00 pm on Monday you should not start work until 7.00 am on Tuesday.
Weekly rest - the 'weekend'
If you are an adult worker you have the right to an uninterrupted 24 hours clear of work each week or an uninterrupted 48 hours clear each fortnight.

Nuclear Weapon is the destructive force

A nuclear weapon is a volatile tool that derives its destructive force from nuclear reactions, either fission or a mixture of fission and fusion. Both reactions discharge vast amounts of energy from moderately small amounts of matter; a modern thermonuclear weapon weighing little more than a thousand kilograms can manufacture an explosion similar to the explosion of more than a billion kilograms of conservative high explosive. Even small nuclear devices can destroy a city. Nuclear weapons are measured weapons of mass destruction, and their use and control has been a major aspect of worldwide policy since their debut.
Since the Hiroshima and Nagasaki bombings, nuclear weapons have been exploded on over two thousand occasions for testing purposes and revelation purposes. The only countries known to have detonated nuclear weapons – and that acknowledge possessing such weapons – are (chronologically) the United States, the Soviet Union (succeeded as a nuclear power by Russia), the United Kingdom, France, the People's Republic of China, India, Pakistan, and North Korea. Israel is also widely supposed to possess nuclear weapons, though it does not acknowledge having them. For more information on these states' nuclear programs, as well as other states that formerly possessed nuclear weapons or are suspected of seeking nuclear weapons, see List of states with nuclear weapons.