Пікірлер

• 
  @burnsm201223 күн бұрын

  Would u please show how to enter the formula

• 
  @noelleletoile898028 күн бұрын

  Do you have a video on how to measure (or calculate) the junction potential?

• 
  @noelleletoile898028 күн бұрын

  Are you still helping students?

• 
  @ilhanbey478 ай бұрын

  allah razı olsun hiçbir yerde yoktu çok işime yaradı

• 
  @Mp-jw1qg9 ай бұрын

  would two of these in a t feeting into say 500' of pfa 1/4" ida be able to push the liquid up through the tubing (lets say a flow reactor?) im flowing two pumps at 30ml per minute into a t, into 500' submerged in a bath. straight into a quench tank. ive got 15 min residence time for my reaction but ive been wanting to set up a pi to monitor the reactions, and control the pumps and be able to let it run remotely. a big 55 gallon drum of input and 100g drum for output could run these reactions from the sofa.

• 
  @vaibhavdevadiga980711 ай бұрын

  Hii I'm currently using UE 5.2. I'm not able to get Text Render to set it to Set Text. Can you help me with this.

• 
  @MishimaZaibatsuCorp Жыл бұрын

  Thanks!

• 
  @prider61 Жыл бұрын

  If you have adequate sensitivity, it is better to dilute and shoot with an external calibration curve so that sample responses come up near the middle of your curve. Methods should evaluate matrix interference early in development.

• 
  @bobthechemist Жыл бұрын

  If you would like to use this tutorial on a different online R resource (e.g. Datacamp) you need to be able to install the signal library. I've confirmed that adding `install.packages('signal')` to your script will allow this tutorial to work in the free-level workspace on datacamp. (And you'll have to do the same thing for the 'outliers' package if you are following the lab handout, but that isn't covered in the video.)

• 
  @Preirin Жыл бұрын

  For some reason, no info is printed to my screen...

• 
  @bobthechemist Жыл бұрын

  See the video description - this solution isn't working post version 4.25.

• 
  @Preirin Жыл бұрын

  @@bobthechemist Ah - well that makes sense then. LOL

• 
  @AidaPardo Жыл бұрын

  Hello, great tutorial! I had the same problem and my head was exploding trying to figure out how to fix it. I did everything you say step by step, the information in the viewport shows correctly but it didn't work, the landscape keeps going up. I am using version 4.27.2. Do you know what could have happened?

• 
  @bobthechemist Жыл бұрын

  A number of visitors have had problems getting this solution to work post version 4.24. Additionally, it does not appear to be possible to do in UE5; so I think the answer to "...what could have happened" is "Epic happened." They went in a different direction and my solution is no longer viable.

• 
  @zismail8857 Жыл бұрын

  Get level viewport camera info 5.1 is not available as unreal engine 5.1 is coming. What should we put in its place?

• 
  @bobthechemist Жыл бұрын

  Good question - I haven't tried to replicate this behavior in a UE5 project yet.

• 
  @zismail8857 Жыл бұрын

  @@bobthechemist okay thanks

• 
  @radelao11 Жыл бұрын

  Are you guys not required to do the last two sections of the Nage No Kata?

• 
  @bobthechemist Жыл бұрын

  When I tested, it was first 9 techniques for shodan and all 15 for nidan (USJF). Rules have changed, and now it's a bit complicated since the requirements are different for competitors and non-competitors.

• 
  @radelao11 Жыл бұрын

  @@bobthechemist Cool I was just wondering what the requirement for the Nage No Kata were. Thanks for answering.

• 
  @Dergicetea Жыл бұрын

  Uki otoshi: 8.5 Ippon seoi nage: 9 Kata guruma: 9 Uki goshi: 9.5 Harai goshi: 7.5 Tsuri komi goshi: 9.5 Okuri ashi barai: 9 Sasae tsuri komi ashi: 9 Uchi mata: 8 This was a very nice Nage no kata 👏🏼👏🏼 I liked it. I would only put more repetions on the Harai Goshi 😊 Congrats!

• 
  @bobthechemist Жыл бұрын

  Hah, thanks. Last summer our sensei had us do a deep dive into one particular throw. Spent 8 weeks on Harai. Might have gotten it to an 8.5.

• 
  @kananabbaszadex Жыл бұрын

  so how can i call 'temp'?

• 
  @user-pt1qf3ur4k Жыл бұрын

  how can i get json file with Path? not URL! Any advices?

• 
  @ahmedhamad6948 Жыл бұрын

  can i get an Excel sheet model of this session?

• 
  @bobthechemist Жыл бұрын

  I'll look; however, the video is from 2014 and I don't think I have that spreadsheet any longer. Sorry.

• 
  @akungamegamer84 Жыл бұрын

  bro can u help me , there is bad size on my player start how to fix it? I replace it on big place without collision but still badsize :)

• 
  @bobthechemist Жыл бұрын

  When I see that, it usually means the player start overlaps with the map floor/wall. I'd try moving the player start to a spot where it is definitely away from all objects to see if that solves the problem.

• 
  @rooftopchannel4467 Жыл бұрын

  Finally I like this video. Can I ask you something? how if i want to display data from api directly or realtime data into 3D text?

• 
  @bobthechemist Жыл бұрын

  Certainly possible, last time I used 3D text was when it was unstable, so I'm not the person to ask for that part.

• 
  @joshuamarchner1606 Жыл бұрын

  Really cool Bob!

• 
  @bobthechemist Жыл бұрын

  Thanks - was a fun project.

• 
  @naimaware Жыл бұрын

  Awesome

• 
  @thecasualfront7432 Жыл бұрын

  best video on the internet by a long way. its just the slope divided by the intercept yo. forget the massive equations

• 
  @_Caose2 жыл бұрын

  If anyone encounters the issue that "Print String" prints empty, be sure that you use the correct "Get xxx Field" node. 'xxx' should represent the value in JSON, not the key. For example, if your JSON is like this; { "level": 3 } you use "Get Integer Field", however if your JSON is like this; { "level": "3" } then you should use "Get String Field". IDK if this is so obvious, but I had a confusing time figuring out. I was trying to use "Get String Field" to get an integer from a JSON, thinking the key is a string, then I realized all the keys are strings :d

• 
  @travisbehrendsen6992 Жыл бұрын

  this is good to know, I found that print string while doesnt show in unreal engine running, it does show it in the text logs

• 
  @swrcPATCH2 жыл бұрын

  not working, array[0] is always None (empty array)

• 
  @amitavamitra64072 жыл бұрын

  Excellent one! Easy to follow. I could land this watching it and it worked. Thanks for sharing it with us. Got a question if someone can help, please. So if my GET / POST request needs a user id and password, is there a technique to do this, please. Thanks

• 
  @boldganbaatar70232 жыл бұрын

  How to use Set Header from Varest plugin? I don’t know how to insert x-api-key to Varest

• 
  @boldganbaatar70232 жыл бұрын

  How to use Set Header from Varest plugin? I don’t know how to insert x-api-key to Varest

• 
  @oh-ah59192 жыл бұрын

  If you are looking to simply move the player start to where the camera is you can right click the object and select "snap object to view".

• 
  @bobthechemist2 жыл бұрын

  Yes, as mentioned in some comments below, this method was broken in 4.26. There is now an UnrealEditorSubsystem that is required to find/use "Get Level Viewport Camera Info" and even then, Editor Utility Blueprints don't expose events and functions to the Details panel. "Snap object to view" solves the named-problem (placing player start) but a new solution is needed if you want access to camera information while editing.

• 
  @oh-ah59192 жыл бұрын

  @@bobthechemist My apologies, I wasn’t meaning to retort the content in your videos. Knowing internet tutorial watchers, I imagined many probably want the”EZ” out of the box way, and my comment was for them. Again, my sincere apologies, I should have been more aliterate.

• 
  @malikjehangir33372 жыл бұрын

  Will this work with HoloLens 2? If yes what’s the configuration that’s needed ?

• 
  @bobthechemist2 жыл бұрын

  Still waiting for someone to gift me a HoloLens 2, so I don't know for sure :-). My intuition tells me that if the HoloLens 2 can handle network traffic, then it can handle this plugin.

• 
  @malikjehangir33372 жыл бұрын

  @@bobthechemist Hi Bob, No worries at all !! But this was a great tutorial, I tried it in HoloLens 2 and it worked flawlessly 😄thank you so much for ur efforts into the content that literally saves the day! Cheers!

• 
  @bobthechemist2 жыл бұрын

  Awesome! Glad it worked. Good luck with the project.

• 
  @3jsjeosn2 жыл бұрын

  What if I want to have information without api. E.g get price from an amazon item? Is this doable?

• 
  @bobthechemist2 жыл бұрын

  I don't think so with this plugin. It does not do generic web scraping.

• 
  @3jsjeosn2 жыл бұрын

  @@bobthechemist how do you think I would get around this problem?

• 
  @3jsjeosn2 жыл бұрын

  @@bobthechemist is there any other plugin that can do scraping inside unreal?

• 
  @bobthechemist2 жыл бұрын

  @@3jsjeosn I have never searched for a web scraping plugin for unreal. If I were interested, my approach would be to see how the experimental Python coding in UE5 works and then use the webscraping libraries (e.g. BeautifulSoup) available in Python.

• 
  @MrCodemachine2 жыл бұрын

  cant find the last step text (render) anymore....on unreal 5 maybe is there a workaround?

• 
  @bobthechemist2 жыл бұрын

  Good to know. I plan to check out UE5 this summer and will keep an eye out for this problem.

• 
  @douugl2 жыл бұрын

  There's a way to use an Oauth2 access token on these GET requests? I'm asking because I need to get data from a google forms responses

• 
  @bobthechemist2 жыл бұрын

  If there is, I don't know about it. Semester is almost over and I'll be able to play with UE again....

• 
  @douugl2 жыл бұрын

  @@bobthechemist Hey, thanks for the response! I get it to work by not using any kind of authentication, I've used an API that is called gsx2json which transforms any google sheet on a json object and than I process it inside Unreal

• 
  @naimaware2 жыл бұрын

  Hello , could you point me out in the right direction? I want to make a website from which I can retrieve json data form t to use in unreal and update that data from another source like a nodemcu device, do you know how or what to follow ?

• 
  @bobthechemist2 жыл бұрын

  If you're looking to post json data to a website and then retrieve that data in UE, io.adafruit.com/ might be a good (free) start. Note that this solution would be limited to a relatively low data refresh rate, but would teach the process.

• 
  @naimaware2 жыл бұрын

  @@bobthechemist Sorry what solution ? I only see the adafruit website mainpage? you meant a specific tutorial there?

• 
  @bobthechemist2 жыл бұрын

  Adafruit's IO tutorials are here: learn.adafruit.com/category/adafruit-io. As for "solution" I mean that the Adafruit IO only refreshes data a few times per minute, so you couldn't use this approach for things like real time positioning of enemies in a game.

• 
  @naimaware2 жыл бұрын

  @@bobthechemist ah no , all I want to do is retrieve a sensor data like humidity or temperature , send it to a website with a nodemcu and write it somwehre so that I could get it from Unreal with the Varest plugin and display the results ingame or have some other interaction there, the most I woul dlike to do it on a personal website but I have no idea how to make that to work and write/display json data there.

• 
  @bobthechemist2 жыл бұрын

  My other vid (kzread.info/dash/bejne/dp2aqNyOgcq8qtI.html) might be a tad helpful. It uses a particle to post data to the web which I grab in UE. The library would be different since I'm using a particle and not a nodemcu, so YMMV.

• 
  @weizhe4332 жыл бұрын

  that's useful to me! thx

• 
  @yamantemiz68892 жыл бұрын

  thanks bro that was what i need!

• 
  @decanecaudeoscar69612 жыл бұрын

  Thanks from Paris

• 
  @craftrevue2 жыл бұрын

  This is a brilliant design! Almost 7 years later and there still aren't LED candles available with these realistic features.

• 
  @bobthechemist2 жыл бұрын

  Wow, someone's checking out my deep tracks :).

• 
  @soadindakhor39322 жыл бұрын

  wonderful example, easy to follow!

• 
  @bobthechemist2 жыл бұрын

  Glad it was helpful!

• 
  @japlay67672 жыл бұрын

  Hi, hey, how would I upload my own .JSON file to the wep?

• 
  @jacobjimenez35712 жыл бұрын

  Thanks!!!!

• 
  @user-kl4oh2co2y2 жыл бұрын

  if you only have the standard deviation are the formulas the same but u is replaced with sigma?

• 
  @bobthechemist2 жыл бұрын

  That's correct. In fact, u is usually the standard deviation (sigma); however, there may be times where you need to use the (manufacturer supplied) tolerance or some other measure of uncertainty.

• 
  @user-kl4oh2co2y2 жыл бұрын

  ​@@bobthechemist thank you sir. Can you please help me with the following problem? If i have a cube with edge length 11 with standard deviation 0.6 and you want to know the standard deviation of the volume of the cube. If I use the multiplication formula the sigma_cube = 11^3 * sqrt( (0.6 /11)^2 +(0.6 /11)^2+(0.6 /11)^2 ) = 126 But there is also a formula for powers,if f = a*(A^b), then sigma_f= abs( (f *b*sigma_a )/ A ). if I use that I get sigma_cube = ((11^3 * 3 * 0.6) / 11) = 218. It should not be that these two formulas give different results, what am I doing wrong? Thank you again

• 
  @bobthechemist2 жыл бұрын

  @@user-kl4oh2co2y This is a tricky one and depends on what you know about the cube. The question you must ask yourself is: "how many measurements have I made"? If you measure *each* side, then you have made three measurements, with the appropriate formula for volume being V = x1 * x2 * x3. If you assume that all sides are equal, and only measure *one* side, then your formula is V = x^3. Because each method has a different number of measurements, they will have different uncertainties.

• 
  @user-kl4oh2co2y2 жыл бұрын

  ​@@bobthechemist thank you sir, my situation is different. I "reshape" 2d images of sphere like shapes into cubes by taking the area of the circles and converting it to a equal length square with the same area. I do this for thousands of circle like shapes and get a standard deviation of the edge length. Then I convert the square to a cube and want to know the standard deviaton of the volume of the cube. This means that I have to use the power rule? I am still confused why this would give a much larger stand.dev. than using the seperate sides, you might have less measurements but why does that matter if I know that it is an equal edge length cube? The difference is huge. Thank you.

• 
  @bobthechemist2 жыл бұрын

  I cannot give you a definitive answer as to why the two approaches give different estimates of uncertainty. You could visit the link below for the calculus behind error propagation. The important takeaway is that variable covariance is not considered in this approach. That is one reason why the a*b*c formula results in a lower error than the power equation. Do note the caveats to calculated uncertainty in the link; if you have the opportunity to make a direct measurement of the error, it is preferred. chem.libretexts.org/Bookshelves/Analytical_Chemistry/Supplemental_Modules_(Analytical_Chemistry)/Quantifying_Nature/Significant_Digits/Propagation_of_Error

• 
  @nesgugel3932 жыл бұрын

  can you make me a tutorial connect php mysql unreal engine

• 
  @bobthechemist2 жыл бұрын

  I'd love to, but I haven't done any PHP programming, so I'm not the best person to follow for that task.

• 
  @Macheako2 жыл бұрын

  Thanks man, I needed this.

• 
  @bobthechemist2 жыл бұрын

  Glad I could help

• 
  @vonnblagaming9842 жыл бұрын

  This is the best VaRest Tutorial. All of the other tutorials are using it without Body. Which is somewhat unrealistic of use. Thanks

• 
  @bobthechemist2 жыл бұрын

  You're very welcome!

• 
  @RRRR_2813 жыл бұрын

  whenever i press play it spawns my actor where ever my camera location is in the editor when in not testing me game

• 
  @mickelelkhoury23783 жыл бұрын

  MAN YOU GOT ME A FULL TIME JOB JUST BECAUSE OF THIS VIDEO YOU LEGEND!!!!!!!!!!

• 
  @bobthechemist3 жыл бұрын

  Nice! Congrats. I hope you get a chance to make cool stuff.

• 
  @majorair13 жыл бұрын

  Saw your comment on an older video. Thank you for the help

• 
  @AlonsoVeloz3 жыл бұрын

  Do you know, how to conect to local host data base ???

• 
  @bobthechemist3 жыл бұрын

  I haven't done that, and it's probably out of scope for VaREST. Have you seen this? kzread.info/dash/bejne/hIaq3LSxqLjOk8o.html

• 
  @jefffstone3 жыл бұрын

  Hello. I have a problem. I created a local server on WEB.API in Visual Studio, created a database on the server. With a GET request, I can display a table, it is displayed in JSON, as in your video. JSON strings from sites on the Internet work for me, but upon request to my server, the output is just "{}"

• 
  @bobthechemist3 жыл бұрын

  Hmm, might be out of my league since I have no experience with Visual Studio. Since internet JSON strings seem to work, my first thought is the WEB.API is doing something different from what VaREST expects.

• 
  @PROX_sebas3 жыл бұрын

  Thank you!!!!!