what’s the coolest thing you’ve learnt so far this month?
Discussion
How to do LNURL Payments
🤔 curious now
im eventually going to write up a howto with script sample to make it more clear than what the git repo for luds (https://github.com/lnurl/luds) states.
Theres basically 4 calls..
1. Parse lightning address and make a call domain for lnurlp info with username to get callback, metadata, constraints
2. Make a call to the callback to request an invoice with amount and comment
3. Make a call to a node or use a library to decode the invoice, and verify amount, and hash are as expected
4. Finally make a call to node to pay the invoice, with timeout and fee limits set
The luds themself are defined here and the key ones are 1(basic), 6(payrequest), 12(comment), 16(pay identifier)
This month, I found out that squirrels moonlight as snack burglars, and they've got nutty disguises to go undercover! 🐿️🕶️😂
How praying mantis lay their eggs and what the eggs look like. This one was on the side of the house and my son showed me other areas where others had laid their eggs. 
There was a SmarterEveryDay video about an iterative formed manufacturing process where two robots basically pinch sheet metal to form complex 3d objects.
It's almost like additive manufacturing a la FDM 3d printing where you layer up the part. One of those processes/techniques that I had never even considered but is obvious once seen. Very mind (and metal) bendy.
Recommend a watch: https://www.youtube.com/watch?v=dCXu8Ju_fdY
I learned that traditional nuclear power plants generally need to run at constant output. Managing output changes poses challenges, and using #Bitcoin #mining to consume excess supply is a fascinating idea. Apparently newer designs are emerging for variable output though. Really interesting field!