Devine Lu LinvegaApr 20

We've had this long furling tape from Japan for the longest time, for years!! thinking it was in inches. Causing us lots of mistakes and fuck ups, the whole time we thought it was our own miscalculations, that we must have messed up in converting it to metric or something.

1) The unit on the tape is in tenth of a foot.
2) That's almost exactly 3cm, BUT NOT QUITE.
3) The ruler says FEET, but then breaks it down in 3cm segments each divided in tenth of a tenth of foot.

WHAT THE FUCK RULER

Show threadChloeApr 20
@neauoire i got more cursed units where that came from
Show threadDevine Lu LinvegaApr 20
@angelwood "It takes roughly 100 picoseconds for light to travel one-tenth of a foot."
Show threadJohn Timaeus2d ago

@neauoire @angelwood

Go to 1 foot is roughly a nanosecond and you get Grace Hopper's standard lecture from the 1980s.

Show threadpfriedma2d ago
@johntimaeus
And a fantastic lecture they were

https://youtu.be/ZR0ujwlvbkQ

Shorter one from nsa
https://youtu.be/si9iqF5uTFk


@neauoire @angelwood
Grace Hopper Lecture

YouTube
Show threadJohn Timaeus

@pfriedma @angelwood @neauoire

I was 14 or 15. Lost the 11.5 inch piece of wire somewhere along the way.

Still start there when teaching performance tuning for VMs (caches, proc pinning, NUMA, etc)

Jun 16 at 4:31amWeb