Split beam torque wrenches are where it's at, especially for home use where it's going to sit for long periods of time. Split beam is easier to set, and you don't have to leave it at 0 when not in use. I have ruined many traditional clickers because I forgot to set it back to 0 for storage, then it sits like that for months.
They aren't as cheap as a traditional clicker, but they are so much better.
Some satellites and rovers have used Radioisotope Thermoelectric Generators (RTGs), which are very different from a nuclear reactor. They use polonium-210, which generates heat, and that heat is converted to electricity with thermocouples. They are low power and inefficient.
To my knowledge no satellite, with an RTG, has ever used ion propulsion. Few interplanetary satellites have ever even used ion thrusters. Dawn, Hayabusa, and Deep Space 1 are the only I can think of, and they all used solar arrays.
Ion thrusters are super efficient, but produce extremely small amounts of thrust. They aren't practical for getting large spacecraft to Mars. These proposed nuclear engines produce large thrust while have efficiency somewhere between regular chemical propulsion and ion propulsion.
So I kind of have a problem with a lot of these "save the bees" places that push honeybees. Honeybees are not native to North America, they are also not really at risk because they are so commercialized. What ARE at risk are native bees, which honeybees compete with and push out.
https://www.nwf.org/Home/Magazines/National-Wildlife/2021/June-July/Gardening/Honey-Bees
The best thing you can do to help bees is plant bee friendly gardens.
I don't think most people even know honeybees aren't native to North America. Native bees are the ones at risk, and non-native honeybees aren't helping.
Sure, depends on what you want to do, that's just the command I used to purge unverified accounts. My instance doesn't really have any users so not a big deal.
Yeah, unless you are deleting hundreds of users you can't really tell, but I deleted 6k+ bots and can confirm user count automatically updates.
Don't delete from the local_user table. You only need to delete from the person table, the rest of the tables will be updated automatically and user count will update automatically.
Edit: The below command will delete all unverified users. NOTE: If you do not have email verification turned on then all users are unverified, therefore all users will be deleted. It also appears with v18 when you enable email verification all existing users remain unverified.
This is a destructive command, use at your own risk and don't go fucking with the database if you don't have backups.
DELETE FROM person WHERE local = 'true' AND id IN (SELECT person_id FROM local_user WHERE email_verified = 'false');
In the parenthesis you can add your AND to only select unverified accounts of a certain age.
Yes, person table is top level. Delete from person table and it cascades down and deletes from other tables. User count also automatically updates. Just be careful because person table also contains federated users. There is a "local" column to determine if they are local users or not.
I had about 6k bot accounts, but they were all unverified, so I just deleted all local unverified accounts from the person table.
Just don't go messing with the database without backups. My host supports snapshots so I did a quick snapshot before messing with anything.
Looks like my instance got hit with a bot. I had email verification enabled but had missed turning on captcha (captcha enable should be up with enabling email verification settings). The bot used fake emails so none of the accounts are verified, but still goes towards account numbers. Is there really any good way to clean this up? Need a way to purge unverified accounts or something.
Assuming you don't want to expose these services directly to the internet (I don't recommend it) then you want to set up a VPN to connect back to your home network. Wireguard or OpenVPN are the most commonly used. As far as guides that will depend where/how you want to run it.
Something like Zoho is only $12 a year per hosted email address.
Been using Zoho for years, cheap and reliable.