To perform the experiments without remorse,
you should read the descriptions well,
use common sense and always observe the following safety rules...
Never insert parts into an outlet. Danger!!
Never connect the experiments to other circuits or devices.
For all the experiments you use batteries...
Only use the described batteries in the experiments.
Set up experiment and check conscientiously. Only when everything is OK, connect the battery as the last step.
Never short-circuit the battery or connect individual parts directly to the battery.
The parts can get very hot and be destroyed.
Never try to recharge disposable batteries!
Always think of the Environment ...
Dispose of used batteries properly!
Faulty or no longer used electronic components do not belong in the trash!
Have fun experimenting ...