The designers also have to take into account the risks of using equipment in a confined space.
With most people stuck in a confined space over Christmas, accidents are common.
"Mr Assange, as everyone knows, is in a confined space, " Ms Alban said.
Ana Alban said the Wikileaks founder, who is fighting UK efforts to send him to Sweden, was suffering from living "in a confined space".
The problem is that you're underground, in a confined space, at the potential mercy of calamities and fellow passengers who may not share your peerless hygienic standards.
Police and security services in Moscow are gearing to up for "all possible emergencies" even though the athletics championships will be held in a confined space indoors at the Luzhniki Stadium.
It turns out that when large numbers of firecrackers are exploded in a confined space such as a pressure cooker, the effects can be devastating especially if they are surrounded by makeshift shrapnel like nails.
What does it do to you being in that kind of a confined space?
The 11 whales are confined in a space of about 30 feet by 30 feet, where they use an opening for a breathing hole, Inukjuak Mayor Petah Inukpuk said.
Observed from the press gallery, the senators in their confined space began to resemble zoo animals Levin a shambling brown bear, John Thune a loping gazelle, Jim Bunning a maddened grizzly.
If he gets it wrong he may be forced to share a confined space for an indefinite period with someone deficient in wit, aptitude and hygiene, with nothing but a flimsy partition for protection.
The reasons are apparently that scars could open up in space, dental problems could cause serious complications, and body odour must be avoided in a confined spacecraft.
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