This article maybe? https://www.witpress.com/Secure/elibrary/papers/ESUS07/ESUS0...
* (net embedded energy is offset in 12 monthes)
"According to the personal notes of Franz Hardtmuth, the marking of pencils using the letter H originates from the family surname Hardtmuth, B means Budweis, or Budějovice in Czech language, and F refers to his first name Franz."
https://www.blog.koh-i-noor.cz/post/the-story-of-iconic-koh-...
Sounds a bit apocryphal to me.
Real button changes position when you press it. Haptic button is flat surface with vibrating motor inside that buzzes so it "feels" like a click. Like in a smartphone.
The ones I have seen have a lag, so you don't immediately know if your button press was registered or not.
- Switzerland usually gets around this by knowing where everyone lives and mailing them a piece of paper 'something you have'
- South Africa gets around this by putting ink on your fingernail
I've read quite a bit about the e-voting systems in Switzerland and USA and I just don't see how they thread the needle. At some point, you have to give someone access to a database and they can change that database.
Until we all have government-issued public keys or something, there isn't a technical solution to this? (Genuinely curious if I'm wrong here)