yes
Licking a light bulb can result in an electric shock and a burning sensation on the tongue. It is not safe to lick a light bulb as it can lead to injury or harm.
I would say that nail varnish stays on for about a week, but sometimes longer.....it depends, but heat/hot water etc does weaken the nails and make them chip etc. As false nails, nail varnish also grows with your nails. It is important that when you are putting nail varnish on that you dont go right to the cutical and around the edge of your nails as that makes them chip, and they dont last as long. If you cover your nail varnish with clear nail varnish, then they have a chance of staying on longer.
No
Absolutely. The scanner uses light to make a copy. Its as safe as any light bulb.
No it is not safe to burn it.
Yes , it is safe to leave a night light on all night , however it depends on the size and the bulb.
Yes, it will be perfectly safe.
YesYes
It is generally not safe to leave a light bulb partially unscrewed. This can lead to poor electrical connections, which may cause flickering or a short circuit. Additionally, there is a risk of electrical shock if the bulb is partially unscrewed and the socket is still live.
Whatever you do don't put aluminum foil around the end of the light bulb as it burns and that is not safe at all.
Yes, it is possible to use a light bulb without grounding, but it is not recommended for safety reasons. Grounding helps protect against electrical shocks and can help prevent damage to the electrical system. It is best to have the light bulb properly grounded to ensure safe operation.