Any Magnet danger?

[Versatile]

Hello, I am new here and several of us have a few questions. We have seen several video's like this.

 

1. Are these actually powering a bulb?

2. How long would last if never stopped?

3. Any fire danger?

4. I have a retrieving that says it will lift 800 lbs.

5. Any danger of doing the same thing with the retrieving magnet?

6. How big a light will it power?

Thanks for looking. I am retired and have some kids asking me. I wonder also.

Edited January 14, 2020 by Versatile

[swansont]

No. There's a trick involved (possibly an inductive source under the table). There is no fire danger if you recreated what's in the video, because no current will be flowing. 

[Versatile]

Thanks. There are quite a few of these videos and by others as well on YOTUBE.

[Sensei]

On 1/15/2020 at 5:39 PM, Versatile said:

There are quite a few of these videos and by others as well on YOTUBE.

They are made to fool people and earn money on ads..