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There are tons of things I had never considered about how difficult it is to fool your brain into thinking it's touching something it's not.  I think the most important technical issue to overcome is timing.  Much like how your brain can understand hearing someone's voice AFTER seeing their lips move, but not the opposite... the lag time of the sense of touch is an important thing for your brain.  Another thing I hand't considered is the "rise time" that has to do with internal stresses in your fingers.  If you conceptualize your fingers as water balloons around bones, you can understand how the internal pressure of your fingers rise the harder you press something.  This type of information coupled with the "Sensory Homunculus" make for some incredibly fulfilling thought experiments.    The temperature question is something I'm particularly interested in.  Using a colder fluid to model a room temperature fluid because of the heat transfer equation is a fascinating area of scientific problem solving.  If you think it through, everything about this boils down to differential equations.  How much heat is leaking out of the hand, and at what rate, through what contact area?  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION  

Sensory / Cortical Homunculus  https://en.wikipedia.org/wiki/Cortical_homunculus

Two Point Threshold 

https://en.wikipedia.org/wiki/Two-point_discrimination

I asked HaptX for a blurb to explain their company.  This is what they came up with:  HaptX is a multidisciplinary team of engineers based in San Luis Obispo, CA and Seattle, WA that builds advanced haptic technology. Their first product, HaptX Gloves, brings touch feedback to VR with unprecedented realism, enabling a new category of industrial training simulations. Founded by Jake Rubin and Dr. Bob Crockett in 2012, HaptX won’t stop until you can’t tell what’s real from what’s virtual. Learn more at haptx.com.  If you're interested in working for them, here's a link: https://haptx.com/careers/

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A Dragon Torched My Hand (How Do VR Haptic Gloves Work?) - Smarter Every Day 191

Click here to subscribe: http://bit.ly/Subscribe2SED Get a personalized DNA genotype test a&d read about new data FDA now allows 23andMe to release: http://www.23andme.com/smarter ⇊ Click below for more links! ⇊ There are tons of things I had never considered about how difficult it is to fool your brain into thinking it's touching something it's not. I think the most important technical issue to overcome is timing. Much like how your brain can understand hearing someone's voice AFTER seeing their lips move, but not the opposite... the lag time of the sense of touch is an important thing for your brain. Another thing I hand't considered is the "rise time" that has to do with internal stresses in your fingers. If you conceptualize your fingers as water balloons around bones, you can understand how the internal pressure of your fingers rise the harder you press something. This type of information coupled with the "Sensory Homunculus" make for some incredibly fulfilling thought experiments. The temperature question is something I'm particularly interested in. Using a colder fluid to model a room temperature fluid because of the heat transfer equation is a fascinating area of scientific problem solving. If you think it through, everything about this boils down to differential equations. How much heat is leaking out of the hand, and at what rate, through what contact area? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ GET SMARTER SECTION Sensory / Cortical Homunculus https://en.wikipedia.org/wiki/Cortical_homunculus Two Point Threshold https://en.wikipedia.org/wiki/Two-point_discrimination I asked HaptX for a blurb to explain their company. This is what they came up with: HaptX is a multidisciplinary team of engineers based in San Luis Obispo, CA and Seattle, WA that builds advanced haptic technology. Their first product, HaptX Gloves, brings touch feedback to VR with unprecedented realism, enabling a new category of industrial training simulations. Founded by Jake Rubin and Dr. Bob Crockett in 2012, HaptX won’t stop until you can’t tell what’s real from what’s virtual. Learn more at haptx.com. If you're interested in working for them, here's a link: https://haptx.com/careers/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Tweet Ideas to me at: http://twitter.com/smartereveryday I'm "ilikerockets" on Snapchat. Snap Code: http://i.imgur.com/7DGfEpR.png Smarter Every Day on Facebook https://www.facebook.com/SmarterEveryDay Smarter Every Day on Patreon http://www.patreon.com/smartereveryday Smarter Every Day On Instagram http://www.instagram.com/smartereveryday Smarter Every Day SubReddit http://www.reddit.com/r/smartereveryday 23andMe asked me to include this in the video description: 23andMe sponsors only the portions of this video that pertain to 23andMe. The remaining contents of the video are not sponsored or endorsed by 23andMe, and are solely the opinions and expressions of Smarter Everyday The thought is it my efforts making videos will help educate the world as a whole, and one day generate enough revenue to pay for my kids college education. Until then if you appreciate what you've learned in this video and the effort that went in to it, please SHARE THE VIDEO! If you REALLY liked it, feel free to pitch a few dollars Smarter Every Day by becoming a Patron. http://www.patreon.com/smartereveryday Warm Regards, Destin

Comments

Robert Keiser

Wow, thanks! The video & lighting in your home look super, by the way (from a lighting geek).

Dan & Jen Baizel

I was watching the video and wondered if they were considering a peltier heating & cooling with the tactors (is that how they are spelled?) flat design.

Adam Willcox

Destin, this is super fascinating.

Patrick Ford

This was really good. I'd love to see more geeking-out content with the smart people you talk to. Maybe film a few minutes of in-the-weeds outtakes for videos and make them available to patrons at a certain level? I love watching smart people talk about something they're interested in, even if some of it goes over my head. (And not trying to make you do more work! I just want to see more and think others might, too.)

Epic Dabble (Jesse Moody)

I loved the in-depth video so much! Honestly I would have been fine with even more theory/geekery, but I understand you have to appeal to a wide audience. I guess that's what SmarterEveryDay2 is for right? :)