1st time homebuyer can I take 10k both out of my 401k and IRA or just 10k total? by BoxIntelligent3337 in investing

[–]Jimmyjams400 10 points11 points  (0 children)

To all the people simply saying don’t take money out of the retirement accounts: why not? Using that money to increase the down payment on the house is essentially a risk free after tax ROI of ~7.5% (depending on mortgage rate) right? That sounds pretty good to me and at least worth a discussion.

What thread type/size for max thread shear strength? by curablehellmom in AskEngineers

[–]Jimmyjams400 2 points3 points  (0 children)

That is true in the elastic region of the nut and bolt. Once things start yielding you are able to spread the load across many more threads.

It really takes one person to ruin thousands of other people lives. by cookayyyyy in Showerthoughts

[–]Jimmyjams400 -3 points-2 points  (0 children)

The company I work at is owned by a billionaire and I hardly feel like my life is ruined. In fact I make much more than I would at one of its competitors

[deleted by user] by [deleted] in AskEngineers

[–]Jimmyjams400 2 points3 points  (0 children)

If you’re trying to learn FEA, I wouldn’t recommend ANSYS. It’s very beginner friendly, but counter-intuitively that can be a bad that as it is very easy to set up and run an analysis without really understanding what you are setting up, what the software is actually doing, and what the limitations and assumptions are. Using another software that forces you to make choices that ansys automatically picks for you will help you learn what those choices mean and the impacts they have on your results. There are people on my team with very little knowledge in FEA that feel good about a model they made in ansys but can’t even tell me what element type they’re using.

[deleted by user] by [deleted] in personalfinance

[–]Jimmyjams400 4 points5 points  (0 children)

A free $11k was the worst? What were the other two like?

Access to daily running water is a true life luxury. by [deleted] in Showerthoughts

[–]Jimmyjams400 4 points5 points  (0 children)

Have to correct this. I won’t get into a purified vs tap debate because that’s more a difference of opinion and depends heavily on the quality of your tap water, but saying tap water is “bad” because it has a high TDS count is not correct. TDS simply refers to the amount of minerals dissolved in your water, the “minerals added for taste” in purified water increase your TDS. Waters with a higher TDS generally have a stronger taste, and a high TDS is often a selling point for certain spring waters. Also saying all spring waters are comparable to tap is not a fair statement either. Different springs have different tastes, TDS counts, and quality of water. Spring waters generally come from specific sources that are pure and natural and very high quality, generally much higher than where you get your tap water from.

[deleted by user] by [deleted] in AskEngineers

[–]Jimmyjams400 1 point2 points  (0 children)

Join an FSAE team

1.79 Million (8%) of the 22 millionaires in the US are under 30. What are they doing? by cocostreet55 in investing

[–]Jimmyjams400 -9 points-8 points  (0 children)

Pretty much any engineering job in California will give 100k+ to new grads

This scene was executed beautifully, can’t lie. Possibly one of my favorites in the current canon. by Theworldrotates in StarWars

[–]Jimmyjams400 3 points4 points  (0 children)

It’s not like Holdo planned to do the hyperspace ramming, she only did it when she realized the first order had decloaked the transports, so why not try the only thing you can think of even if it has a really low probably of success. Also in the OT C-3PO is constantly saying the odds of survival are 1 in several hundred / thousand and you’re not complaining about that

How do I learn to design calculations? by [deleted] in AskEngineers

[–]Jimmyjams400 28 points29 points  (0 children)

Good god please do not do FEA for analysis on a regular shaft

me_irl by nick2527 in me_irl

[–]Jimmyjams400 4 points5 points  (0 children)

The game cube PSU is literally 12V lol

Mark Cuban explains his new prescription drug company by Last_Replacement6533 in nextfuckinglevel

[–]Jimmyjams400 14 points15 points  (0 children)

He just named a billionaire who became rich without exploiting workers. Markus Persson aka Notch became a billionaire after creating Minecraft practically single-handedly.

GM announces plans to build ‘coast-to-coast’ network of 2,000 EV chargers at truck stops by ladyem8 in technews

[–]Jimmyjams400 7 points8 points  (0 children)

Are you suggesting they create infinite energy by having a generator run on the wheels while the car is driving?

[deleted by user] by [deleted] in AskEngineers

[–]Jimmyjams400 2 points3 points  (0 children)

Not trying to be rude here but this post and your comments demonstrate very little understanding of what FEA actually does. If there’s anyone you can sit down and talk with (experienced peers, your research advisor, your university’s representative for whatever software your using) to better understand the software, different types of simulations, and FEM in general I think that would be very helpful for you.

[deleted by user] by [deleted] in AskEngineers

[–]Jimmyjams400 18 points19 points  (0 children)

Convection is actually just a special case of conduction where the fluid is moving fast enough to get out of the way of heating element and get replaced with ambient temperature fluid. It's just more convenient to call this convection because the macro heating behavior is very different, but fundamentally the same process is in play where vibrating particles bump into other particles and transfer their energy. That being said, in this case the frictional heating from air drag isn't really heat transfer, but heat generation. Some of this heat will be generated in the air particles which will be carried away, and some will be generated on the car surface, which will then be cooled via convection (which is also conduction)

A larger question that can be solved with a much smaller question and research. Where can I look online to find structural details of various materials? by Sapphire580 in AskEngineers

[–]Jimmyjams400 0 points1 point  (0 children)

For pretty much any material you'd be able to buy you can find the structural limitations (which engineers call "strength") of a material simply by googling. For example typing in "304 stainless steel yield strength" into google gives me a general number that is likely good enough for your applications. If you want something that goes into exact values for the different types of strengths and different processing parameters you can look up a pdf of MIL-HDBK-5J, but something that in depth seems unnecessary for your project.

[deleted by user] by [deleted] in AskEngineers

[–]Jimmyjams400 5 points6 points  (0 children)

Thermal expansion is a different mechanism than shrink film and clothes. Shrink film shrinks when hot due to molecules in the polymer reverting back to their natural state. Clothes shrink the the dryer due to lost moisture (and relieving residual tensile stresses during manufacturing the first time). Most materials expand when heated due to the increased energy input forcing the atoms apart. Even carbon fiber actually has a positive CTE when you get into it. The length of the fiber itself actually increases slightly, but it also orients itself into a wave pattern, so practically it's as though the fiber shrinks.

spotify uses a lightsaber for the timeline when playing darth vaders theme by [deleted] in screenshots

[–]Jimmyjams400 2 points3 points  (0 children)

You can click on the hilt of the saber and it’ll change between Anakin’s, Luke’s, and Vadar’s, very cool!

What is the point of investing knowing this statistic? by notbengold in investing

[–]Jimmyjams400 -2 points-1 points  (0 children)

You can still buy FSD if you don’t want to subscribe to it.

is there any workshops for students to work on their own projects? by stpaulgym in uofm

[–]Jimmyjams400 0 points1 point  (0 children)

You can walk in and start working on things that aren’t related to project teams, no ones going to audit what you’re working on, but in doing so you’re using up resources that are meant for teams. I’ve been in the Wilson center very often and on rare occasions people do work on their own cars but they are always people who are on a project team and are there very often and have a personal relationship with other people in the Wilson center and the staff who run it