yes
working of direct view storage tube
They don't, it's just that some are supposed to be for over 18 only.
It is a shape that is like a toothpaste tube which has a circular lid which is the same size as the tube below it.
no
Child pornography.
No, it is not illegal for a person to view the cables on wikileaks.
A direct view storage tube is used to display an image for a period of time after it was illuminated. They are used as a computer-display medium and have a high resolution.
You can view burnout videos on every tube website on the internet. Tube websites are website with offer videos that other users have uploaded, for example Youtube.
This depends on how you structure your backyard. If your next door neighbors' kids can't help but see you skinny-dipping or otherwise naked in your pool or backyard then it is illegal. But if you have privacy fencing and kids try to climb over it to take a peek at you, then it's not illegal.
It could be illegal from the point of view of the home countries of the missionaries, and it would very likely be illegal from the point of view of the target country. Don't enter this project unprepared.
If it is in view of the driver - yes.
It is - if you're not entitled to view them !