Potentially you could even make two “arms” one with potentiometers to measure the angles at different points on the linkage and a second with servos set to reproduce those angles. So a person can trace out an object or drawing on the first one, then the second one shadows/reproduces it. It would simplify any code substantially and would probably be more impressive to the judges

It might be a good idea to look at a pantograph for something like this, you could probably build a simple linkage out of popsicle sticks and use a couple of servos to control it. It would take some trigonometry to get it right but it’s probably the easiest to build with those materials

Okay, that’s not how tariffs work, a tariff is just a tax on a foreign good that american companies have to pay when they bring that good into the country.

Let’s say that a vacuum cleaner costs 100 dollars, a 25% tariff is a 25% tax that the company that brings that vacuum cleaner into the country has to pay. That company still wants to make a profit, so they raise the price by 25 dollars.

It’s american companies that pay tariffs, and that extra cost gets passed on to the consumer. The reasoning behind it is that as foreign goods become more expensive consumers will want to buy more american made products. (This is a huge oversimplification)

So yes it does hurt american consumers, and it will make stuff more expensive. Most actual experts say that these tariffs make no sense economically.

However, Trump wants the tariffs because they look good politically, and he’s willing to make things more expensive if it means people will vote for him.

TLDR: Tariffs will make stuff more expensive, but they’re popular.