According to https://tube.tchncs.de/about/instance, user registration is disabled.

On the same page there is a contact information of the instance admin (a Mastodon account).

It is probably better if you contact the admin directly.

Thank you for the explanation. Hopefully I learn something from the reference you linked. I’ll watch the video first before reading the literatures.

Thank you for taking the time to explain the topic to me. I appreciate it. I’ll try to read the book.

What does “material analysis” means in this context? What should I search to know more? I searched the term and only came up with chemistry topics.

Evidently not. 😮‍💨

This watch is so light and small I can wear them anytime.

The manual warned that its frequent use will shorten the battery life, but I can’t stop pressing it. 😝

You jest! But my wallet is sweating in fear 🤑

Yep: affordable, functional, good looking too!

I was looking for an alternative for Casio F-91W and this model came up. Good thing I chose this too, because larger models will appear comical on my wrist.