Uploaded May 2023 | Updated September 2026, 3 weeks ago
These are the five most popular posts on Hackaday for the week of May 15th, 2023:
hackaday.com/2023/05/13/tiny-bitcoin-miner-plays-the-lottery
hackaday.com/2023/05/15/zippy-plastic-welding
hackaday.com/2023/05/14/a-guard-bot-for-your-home-assistant
hackaday.com/2023/05/17/cornering-the-antenna-market
hackaday.com/2023/05/15/new-dos-pcs-in-2023
Credits:
Original Art: Joe Kim (joekimart.com/)
Music: LO FI COMMONS (youtu.be/AUehoIaFD1I)
These are the five most popular posts on Hackaday for the week of May 15th, 2023:
hackaday.com/2023/05/13/tiny-bitcoin-miner-plays-the-lottery
hackaday.com/2023/05/15/zippy-plastic-welding
hackaday.com/2023/05/14/a-guard-bot-for-your-home-assistant
hackaday.com/2023/05/17/cornering-the-antenna-market
hackaday.com/2023/05/15/new-dos-pcs-in-2023
Credits:
Original Art: Joe Kim (joekimart.com/)
Music: LO FI COMMONS (youtu.be/AUehoIaFD1I)







![Supercon 2022: Alec Vercruysse Can See Through Murky Water
Detecting objects underwater isnt an easy challenge, especially when things get murky and dark. Radio waves dont propagate well, so most techniques rely on sound. Sonar is itself farily simple, simply send out a ping and listen for an echo, and that will tell you how far something is. Imaging underwater is significantly harder, because you would additionally need to know where each echo is coming from.
To answer the question of whether it is possible to put together an ultrasonic 3D imager that would cheaply enable anyone to image objects underwater, [Alec Vercruysse] and fellow team members at the Harvey Mudd College set out to create a system that does exactly that.
Read more at Hackaday: https://hackaday.com/2023/03/08/supercon-2022-alec-vercruysse-can-see-through-murky-water/ Supercon 2022: Alec Vercruysse Can See Through Murky Water](https://i.ytimg.com/vi/rBI3Np3NHmw/mqdefault.jpg)


