This is probably the best way to get up if your joints can fully rotate. If you look closely, the legs are exactly below the center of mass when they touch the ground, making it easy to push upwards without falling over.
Humans just have to make complicated contortions or jump up because our joints are inferior (there are no slip rings for blood vessels).
Tunnels need to be large so they can have safety features like emergency walkways and air conducts. Musk’s tunnel is just large enough to contain a car, because every inch of diameter costs an enormous amount of money.
Before this project Musk boasted that his Boring company can do tunnels much cheaper than traditional companies, this tunnel showed how.
How would you define “accessible”? The web app I’m working on works in Firefox, but a few text labels are misaligned with their input controls due to slight CSS deviation from Chromium. It’s those things that are most of the problems for supporting both browsers, functionality-wise they’re very close (except newer features that Firefox hasn’t implemented yet or Google-specific features like WebUSB).
No, this means something else in chip design. For example, an AVR microcontroller can be configured by blowing some fuses. Here is an introduction: https://www.ladyada.net/learn/avr/fuses.html
Fusion 360 is amazing in the Getting Shit Donetm department, which is the weak point of FreeCAD. I have managed to steer through the byzantine UI of FreeCAD to create a CAD model, but it needed support by someone who has spent years in that application to get the more complex stuff, and even he didn’t exactly know how to achieve it, and that’s on top of me having participated in a 16 hour workshop on how to use FreeCAD. For Fusion 360, I’ve watched a few 5 minute videos on their official channel and that’s it, everything else I was able to accomplish through just looking at the UI.
I learned Fusion 360 before FreeCAD, so it’s not just that I had prior experience in another similar tool.
I think the basic problem with FreeCAD is that it’s a collection of tool benches written by different people who don’t talk to each other. They have overlapping responsibilities while still having vastly different feature sets and don’t integrate with each other most of the time. So, if you want to create a model, you first have to plan ahead to understand what kind of features it’s going to have, and based on that, you have to decide which collection of tool benches you have to pick. More than once I picked the wrong one in the start and then had to do everything all over again in the different one once I ran into a dead end.
Fusion 360 feels like it was written by a single team with a single vision, and everything fits together.
It was marketed as $7 (I think), but it was never sold below $15 as far as I could find.
Also, since that price was without any profit margin, merchants only sold them in expensive bundles most of the time (with a case, SD card, etc).