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Haha Elon, that’s so funny. We all know a true poser wouldn’t ever admit to being a poser. This is exactly something the real Elon would say. Nice try!

Hi Elon 👋🏼

I would recommend to avoid rope drop at all costs. You’re not getting into the park any faster. It takes some time for the initial masses of people to enter the park and for the turnstile traffic to decrease to its normal daily flow.

In my experience regarding rope drop it comes to this: you’re either waiting for the park to open or you’re going to wait an extra couple of minutes to board a ride. Waiting for the park to open is a massive waste of time IMO.

I’d recommend getting in the park about an hour or two after open. Avoid the madness. Besides, spaceship earths longest wait gets to what.. 30 minutes at the most on a regular day?

EPCOT has a cult like following to it because of the ground breaking visionary scope of the park when it first opened. It was created to be a place where folks could come to learn about innovative future technologies, learn about cultures from all over the world in a sort of permanent World’s Fair, and all while having fun. Spaceship Earth and Journey Into Imagination are both original rides that have been redone several times over the years but still sort of retain some of that original concept. Some newer rides still sort of hold on to the vision but the direction of the park has changed over the years and now yields to a more disney-centric experience full of Disney intellectual property. With that said, this would be my ideal trip to Epcot for a first timer.

First note: fast passes are best used on Soarin, Test Track (unless you don’t mind single rider, which is way faster than normal queue), and Frozen Ever After.

I’d start with spaceship earth because it really sets the tone of the park. Afterwards head over to EPCOT future world and ride Mission Space (always a shortish wait) and then Test Track for a bit of early thrill. From there head over to World Showcase where you’ll start at Mexico and work your way around the Pavilions going clockwise. Stop in every Pavilion and check out what’s going on. Talk to the people. Try the food if it looks good. Maybe pick up some fun souvenirs. Several countries (China, France, Canada) have neat video presentations that are supposed to be a whirlwind tour of the country. Definitely check those out! Frozen Ever After is a little overrated in my opinion but if you’re into it then check it out. The American Pavilion also has its own neat animatronic show detailing the early days of America, bringing some of your favorite characters such as Mark Twain and Ben Franklin. It’s cool! A perfect place to hang out on an especially hot day because it’s super dark and cool in there. The Japanese retail store is my favorite! Lots of neat things you can find in there.

Several countries will have entertainment through the day, which is also definitely worth checking out! China has an acrobatics group, Germany a little Bavarian band that plays, Morocco has belly dancers, France has a street performer, England has a music garden where a English rock tribute band plays, and Canada also has a small venue for a Canada rock-type of group. These things really make the world showcase experience that much more fun and are definitely worth checking out. When you make the rounds ask around and see when these groups are all expected to perform (I don’t know myself) so you don’t miss them.

After you round all of world showcase you can make your way into future world east where you should ride Journey Into Imagination, Living with the Land, Soarin, and then check out the aquarium over at The Seas with Nemo and Friends. You might want to consider checking out Turtle Talk with Crush if you have little ones. It’s pretty fun usually. But definitely don’t miss the aquarium. There’s also a Nemo ride in there but it’s meh. The aquarium is spectacular.

At this point you’ve done almost everything there but I’d make the rounds of world showcase again and check out all the things you missed or planned for later.

Food items to try...

Sweets: caramel corn in Germany, matcha ice cream in Japan, ice cream in France (hands down the best! Definitely get some),

Quick service meals: sausage and paprika chips in Germany, noodle bowls in Japan, pizza in Italy, electric umbrella for typical Disney food (burgers, nuggets, etc), cafeteria in The Land Pavilion (good choice and lots of options)

Big meals: there are tons of finer dining options through Epcot. La Cellier (spelling?) is supposed to be one of Disney’s best steakhouses. Teppan Edo In Japan has really fun Hibachi style dining options and is pretty good. Sommerfest is a Octoberfest style buffet in Germany and is perfect for a really hearty meal! The Chinese restaurant and Norwegian character dining experience is pretty good too. Oh, there is also a character dining location at The Land which people love as well! Not buffet but unlimited food.

The fireworks show at the end is one of the best so stick around for that. On a regular evening if fireworks are at 9pm you can usually find a good spot if you wait till 8:30pm. Of course, the sooner the better. Any location around future world is good but maybe some people on here have spots that are better than others. Japan, Italy, and Canada/Mexico areas and in between them all seem to have some of the better views.

Also! There is a back entrance for Epcot behind England which leads to the Epcot area resorts. If you’re looking for extra walking you can always go walk along the boardwalk resort area and check out the Yacht and Beach club. These aren’t must-do type things but maybe they’ll pique your curiosity.

So that’s about it! Feel free to mix in match attractions. You should be able to do almost all of Epcot in a single day if you go early and get the right fast passes. If you have any questions in particular feel free to ask!

Yeah, it’s incredible that schools offer it! Again, not ever school offers it but the ones who do usually provide it as a stipend or sometimes as a fellowship, Research assistantship, or teaching assistantship. You’re expected to conduct research under the guidance of your advisor, which will eventually become your thesis and dissertation. So at the end of the program you walk away with a wealth of experience in whatever area you’re studying, you’ll have a PhD, and your schooling and basic cost of living will have been covered. I’m an undergraduate right now at the end of my ME degree and I can name several labs and programs at my school that offer this. It’s awesome!

I certainly don’t think it would be a topic to avoid in job interviews. It’s all part of the competitive benefits package companies offer to attract and retain talent. If anything I would imagine it would be a positive! If I’m an employer and a job candidate is telling me that they not only want the job but want to continue to advance their expertise and skill set as it applies to that job then I want that person working for me. Be mindful though, not every employer will pay for you to get any degree. Sometimes you have to be pursuing a degree that complements the work you’re doing with the company. For example, if you’re working as a horticulturist at a zoo they might not want to pay for you to pursue a business degree but will support you studying biology.

Also, when you’re back in school please don’t hesitate to do these two things: 1) join a project-based student organization that will allow you to develop your skills as a roboticist and even compete in competitions (often where employers recruit) and 2) reach out to faculty, even as an undergraduate, whose research you’re interested in and ask if you can work in their labs. If you want to pursue grad school this is a must. Even if you don’t some of the best experience you’ll get is in university research labs. At my school we have a robust planetary science department where we hire undergrad engineers to develop, build, and fly cubesats and experiments that fly on the international space station. It’s cool writing on your resume that you’ve built spacecraft that have actually flown in space!

If you plan on going to the university of Washington (beautiful school) explore the faculty pages of the CS, EE, ME, and AE departments. If you find any faculty participating in anything complementary to your interests then reach out to them and pose the same question. Professors typically and more than willing to offer career and educational guidance and know the industry much better than most.

Likewise, if you have companies in mind that inspire you then look at their job boards and see what kind of experience they require. As someone else mentioned, you can go either through the academic route or through industry. Each has pros and cons but consider both!

Personally, I’d go the academic route. Pursuing a PhD will allow you to be on the cutting edge. Carnegie Mellon has an absolutely incredible program you should really consider.

Many graduate programs will cover the cost of tuition and provide you with a stipend. Go for those programs. Some programs like Stanford don’t provide much in the way of financial assistance but often take students that have employers paying for their degrees. Reach out to the faculty at that university and see what type of employers are funding these students.

Original Poster1 point · 16 days ago

So we haven’t found exactly what we want yet but instead changed the design a little bit. There was one motor that seemed to meet the performance requirements listed on the website of some Chinese company.

The new idea is to find a motor that will meet the torque requirements and through gearing we’ll be able to get the RPMs we need. Someone suggested finding an electric golf cart motor, as it might be suitable for what we need.

Original Poster1 point · 23 days ago

Hey! Yeah, I understand the idea but there are a few more complications. The entire capsule (and therefore weights you mentioned if incorporated) would have to be brakes and then reeled back up. Adding extra weight makes both of those processes more difficult. Also, the entire project has a mass budget of like 400 kg. The goal is have the system as light as possible.

Original Poster1 point · 24 days ago

Yeah, so to get a little deeper into the project itself, at the end of the tether is a capsule that houses a microgravity experiment. This is a type of physics experiment where the interactions of materials are investigated under near zero gravity conditions. The capsule, attached to the tether, will be dropped and experience free fall. However, the tension that remains in the tether becomes a problem, thus not allowing the capsule to achieve perfect microgravity. The solution to this is to draw the tether off of the spool at the exact same rate, or slightly faster, than the free fall the capsule is experiencing. Therefore, a motor is needed to draw the tether off of the spool at a rate that will equal the linear acceleration of gravity.

You’re absolutely right - the torque required results from the MOI of the spool and the tether that remains on the spool. The entire drop is pretty dynamic in terms of changing forces, MOI’s, and all that jazz.

A braking system is also integrated too.

Original Poster1 point · 24 days ago

Ahh I think I get it! It looks like if the desired peak rpm is 10k and you're matching that to a motor producing your peak hp at 5k rpm then X = 5k/10k giving you a ratio of 0.5:1, yeah?

Thanks again so much for the help! I really appreciate it.

Original Poster1 point · 24 days ago

Really? I don't have much experience with gearing. How can I calculate/determine the gears needed to meet these requirements?


Original Poster1 point · 24 days ago

Power = torque * angular velocity. So at maximum speed Power = 4 Nm * 1050 rad/s ~ 4.5 kW (10,000 rpm ~ 1050 rad/s).

The plan was to incorporate an optical encoder to track the displacement of the tether or the amount that has been unspooled. With this we were hoping to introduce a closed loop feedback system into our controls design.

In regards to precision, ideally we would prefer 500 + 1m but could probably get away with 500 + 10m. I have + on purpose too; we can tolerate a positive error but not negative so i.e. we can have a little extra tether displaced but no less than 500 m.

Original Poster1 point · 24 days ago

Hey! Thanks for the response!

So far the only high speed motors I've been able to find are smaller motors that handle torques on the order of ~ 50 - 100 mNm rather than 5 - 10 Nm.

So admittedly, I'm not savvy at all with motors, much less electrical engineering. I'm working with a few friends on this project and I think the original reasoning to choose DC was because we thought it'd be a simpler design. There was a previous iteration of this project that was scaled down somewhat so the DC motor concept is sort of legacy from earlier designs.

If you think AC would be the best thing moving forward then I could definitely do some research into that and explore my options. If you have any recommendations I'd definitely appreciate it! Also, how does AC affect the power source? Will I have to choose a different type of battery? I'll start googling this :)

Original Poster2 points · 24 days ago

Now that I think about it I suppose the torque really isn't that high.

This is only true if you’re doing something else productive while peeing like washing your hair or rinsing off. If you’re just standing there peeing in the shower while gallons of water rush over you then no, you’re wasting more water than you normally would have if you just used the toilet.

In my day we would’ve called that a Dusk Stone and used it to evolve our Murkrow.

In addition to all the great answers relating to metals, the same is true for rock! Some of the final properties of rocks are determined by their cooling process, from the point of being a molten material to when they solidify and their interior crystalline structure starts to form.

There has been such a tremendous amount of misinformation regarding the space force. For a comprehensive overview of the proposal I implore to listen to the latest episode of Planetary Radio’s space policy podcast. It’s incredibly informative.

Pat Metheny’s album The Way Up is a masterpiece.

IIRC the spire was included in the new design, albeit with an updated name to it

I’m visiting here this week! Hijacking this post and asking for any recommendations for things to do in the city!

That’s because this case in particular was a vertical merger and didn’t necessarily stifle competition for the individual markets the two companies compete in.

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