Can't help you with a list. But https://hackaday.com/ features sometimes nice DIY project, I often also see them popping up on youtube. But you might be able to find some if you search on 3D printing websites such as https://www.printables.com/. - Source: Hacker News / 2 months ago

Https://hackaday.com/ has many ideas/previously made projects. They also reward you for bringing up something new. Also accept year around applications. Check it out. Source: 12 months ago

We made abstractions successfully, world changing abstractions. Do the NAND to Tetris course and see that tech is abstractions on top of abstractions. Electronics today is frequently represented by code. Check out Verilog or VHDL. https://en.wikipedia.org/wiki/Hardware_description_language Where electronics stayed interesting is in the realm where code meets reality -> robotics and art. Playing with LED's,... - Source: Hacker News / about 1 year ago

Hackaday for when I'm browsing cool ideas I can actually do myself. Source: about 1 year ago

Very nice phone switch you should send it to hackaday.com. Source: over 1 year ago

No one expects a math class to build geographers. No one browses to math.com to become a geographer. Source: almost 2 years ago

As a dad, might I recommend math.com, it is a great website. Source: almost 3 years ago

"Topics on the GED Math are number operations and number sense (about 20% to 30% of the test), measurement & geometry (approximately 20% to 30% of the test), data analysis and statistics (about 20% to 30% ), and Algebra (approximately 25% to 30%of the test). There are two parts on Mathematical Reasoning section. The first part contains 5 questions where calculators are not permitted. The second part contains 41... Source: almost 3 years ago