Brain teaser to solve thanks to a physical law

1. Put the cylinder into the base
2. Remove it without grabbing the cylinder with your fingers or turning the stuff down !
3. On of the letter on the base give you the answer 

• Infille of 5 to 10 % is enough
• The picture is an old version with an old 3D printer 

Solution : 

→  Translate Abkhazian to your language :

“”"

Аԥсыԥ агара ма ажәра уцхраар алшоит

“”"