General Discussion

tblue37

(68,341 posts) Fri Apr 10, 2020, 11:05 PM Apr 2020

Link to tweet

4 replies

= new reply since forum marked as read

Highlight:

Very clever video shows why social distancing works: (Original Post) tblue37 Apr 2020 OP

Back in the 1960s the pingpong/mousetrap analogy was Lucid Dreamer Apr 2020 #1

Try this if you hit a pay wall progree Apr 2020 #2

thank you Demovictory9 Apr 2020 #3

Mister Wizard did this TlalocW Apr 2020 #4

(589 posts)

1. Back in the 1960s the pingpong/mousetrap analogy was

Fri Apr 10, 2020, 11:51 PM

Apr 2020

used to demonstrate nuclear chain reactions. [16mm film strips in physics class]

Nice adaptation here.

(12,805 posts)

2. Try this if you hit a pay wall

Sat Apr 11, 2020, 12:16 AM

Apr 2020

(37,113 posts)

3. thank you

Sat Apr 11, 2020, 12:22 AM

Apr 2020

(15,674 posts)

4. Mister Wizard did this

Sat Apr 11, 2020, 12:28 AM

Apr 2020

In the 80s.

TlalocW