vithigar

joined 2 years ago
[–] vithigar@lemmy.ca 5 points 1 month ago

Yes, that's all true, but none of that describes its free-fall trajectory. Drag causes it to deviate from free-fall very slightly, and it definitely wasn't in free-fall when the pieces were launched from Earth

[–] vithigar@lemmy.ca 10 points 1 month ago (2 children)

Spent a moment thinking about this and I think there's an implied definition for what "on earth" means that we intuitively accept but don't ever really need to state.

If your projected free-fall trajectory both forward and backward in time intersects with the surface of the earth then you are "on earth".

Standing on the ground? Intersects twice. Thrown rock? Intersects twice. Person in an airplane? Intersects twice. ISS? No intersection. Incoming impact meteor? One intersection.

[–] vithigar@lemmy.ca 9 points 1 month ago

Lethbridge, Alberta

They were looking for an excuse to do this anyway.

[–] vithigar@lemmy.ca 63 points 1 month ago (2 children)

If that was too much skullduggery for your taste then you really shouldn't watch Deep Space Nine.

Computer, delete that entire personal log.

[–] vithigar@lemmy.ca 5 points 1 month ago (1 children)

We wouldn't recognize the aliens symbols for 0-9 at first either.

[–] vithigar@lemmy.ca 5 points 1 month ago (1 children)
[–] vithigar@lemmy.ca 3 points 1 month ago

You can though? mySet.values().map(mappingFunc) will create a new iterator transformed by the mapping function.

[–] vithigar@lemmy.ca 3 points 1 month ago (2 children)

I'm currently on a crusade against lodash where I work.

[–] vithigar@lemmy.ca 3 points 1 month ago

PRO: What if temporal paradoxes had feelings?

[–] vithigar@lemmy.ca 0 points 1 month ago (1 children)

So what is the mass of a byte of ‘pure’ information? And how do you derive it?

That's all in the linked wikipedia article, but since you asked:

At room temperature, the Landauer limit represents an energy of approximately 0.018 eV (2.9×10^−21^ J).

That's 1 bit, so 1 byte is eight times that, which you can plug into E=mc^2^ to get its absurdly small equivalent mass.

It's important(?) to note that Landauer's Principle is not settled science and has yet to be rigorously proven, unless there's some recent development which the comic is referencing. I haven't checked.

[–] vithigar@lemmy.ca 0 points 1 month ago* (last edited 1 month ago) (4 children)

No, you missed the point. See @milicent_bystandr@lemm.ee's comment and link to Landauer's Principle, the namesake of which is literally named in the title of the post.

TL;DR: Storing information requires a change in entropy. A change in entropy requires a change in energy. There must be a minimum non-zero amount of energy required for a given quantity of information. Energy is mass due to mass-energy equivalence. ∴ information has mass independent of its physical representation.

[–] vithigar@lemmy.ca 2 points 2 months ago

The most conservative person I know is a Bangladeshi immigrant.

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