A question of bond

[Ungern]

Hello everybody

One technical question:

We say that the first lego where made of  wood
I think that it was with a simple  system of tenon and mortise
so that the construction didn't can be reversed ,because the gravity would delete the construction.
I don't no ...I ask 

What has been the next step ?
A system of tenon and mortise in plastic only ?,
or directly a system of tenon and mortise with a little distorsion of the mortise ?

Now, how the system work ?
tenon and mortise + little distorsion +little air vacuum?

If there is a distorsion ...I dont know...I ask ... 
a) what is the amount of distorsion ?... I think that we are speaking here in "Angstöm" ?
b) how many time can we do the same distorsion on the same block?
c) how many time a distorsion can exist before appearance of a "memory problem with the plastic so that he couldn't be use "again" ?

 

[Mylenium]

If you research the matter, you will find that the follow-up "brick" systems were made of hard rubber, resins and early non-thermal plastic types like Bakelite. The relevant technical parameters can easily be researched. I don't think it was as much fun, though, given the huge amount of schrinkage and tendency to break of many of those materials. Beyond that all such systems are merely friction/ adhesion based. One can't preclude that popping on a hollow brick on top of another might create some sort of low pressure inside, but it's never going to be enough to hold the brick on its own and since it's not airtight, the pressure will even out eventually, anyway.

Mylenium

[1963maniac]

Yes, the first Legos were made of wood and they were not bricks at all. They were wooden car & trucks, etc.

[Ungern]

Thank you Milenium and 1963 maniac .

 

[LegoDW]

Love the Speed Champions offering this year.  Wish the Asian sets were offered in North America. Maybe someday