Well, this requires a 2 part answer:
"everyone" knows a thread is a thin piece of string-
AND
As I learned just the other day from Daryl- "jacking" is a form of steering.
Sooo
There is no physics in "thread jacking" because every engineer knows
- YOU CAN'T PUSH A STRING -
QED
HB
Cute!
__________________
HP, grant me the serenity to accept what I cannot change, the courage to change what I can, and the wisdom to know the difference. Progress and not perfection is the goal every day!