Mindblowing future knowledge

Like, you know those rocks that make some kinds of other rocks stick to them? No?.. well those are magnets and then if you spin them around in with metal somehow... Well if you stick some copper in a lemon and then put it on a light bulb, oh right we don't have those yet...

If you knew and showed them, they would start a bonfire for you

By rubbing feet on rug while wearing socks.

Umm... Just grab a few basic manuals and you're good to go.

As a programmer it would suck for me to travel back in time. People would ask me what do I do in the future and I'll have a hard time explaining it to them. I would look for a job in the past, I don't think there's a job there that remotely close to sitting 8 hours a day clicking and clacking.

I actually do know how, I just don't know where to even begin finding the material necessary sjdksjdksjd

The ancient greeks knew what magnets were at least.

https://youtu.be/BVxOb8-d7Ic