• Hoverboard kickstarter proves once again that the masses don't understand physics
    98 replies, posted
[quote="Kickstarter"]So where does the HENDO hoverboard stand today? Well, about 1 inch off the ground. As you can see from the video above, the prototype is real and it works! But to see it hover in person, and better yet, to defy gravity by riding it, is something you need to experience as well.[/quote] [url]https://www.kickstarter.com/projects/142464853/hendo-hoverboards-worlds-first-real-hoverboard[/url] These marketing geniuses have taken what amounts to a quadcopter kit and replaced the motors with electromagnets, then raised a quarter million dollars over the course of one day. You still need a metal floor to hover, so what's the point? Also they blatantly lied in the technical description: [quote]The magic behind the hoverboard lies in its four disc-shaped hover engines. These create a special magnetic field which literally pushes against itself, generating the lift which levitates our board off the ground.[/quote] That isn't how force/propulsion works, unless they've made some newton shattering discovery. If that was the case they wouldn't be on the internet asking for money.
Seriously, "Pushes against itself"...
It's amazing how fast people will take headlines at face value.
[QUOTE=chimitos;46309561][URL="http://www.engadget.com/2014/10/21/we-rode-a-hoverboard/"]https://www.kickstarter.com/projects/142464853/hendo-hoverboards-worlds-first-real-hoverboard[/URL] [/QUOTE] Why write the URL to the kick starter page, but make it link to a news page?
[QUOTE=Volgan;46309588]Why write the URL to the kick starter page, but make it link to a news page?[/QUOTE] I posted the wrong link initially, the WYSIWYG editor must've done that somehow. It's fixed.
This is just sad
its a cool application of existing technology, but my basic understanding of physics cringed heavily at how they marketed it
At least the potato salad kickstarter was marketing itself honestly. This is just silly.
10 people pledged more than 10.000 dollar to het one of the first hoverboard, already. Holy shit
If it pushes against itself of all things, wouldn't it not get off of the ground? I'm pretty sure you want it pushing off of the ground.
Anyone got a breakdown of how this was done?
[QUOTE=GoDong-DK;46309699]Anyone got a breakdown of how this was done?[/QUOTE] As far as I can tell it's just an electromagnetic levitation thingie, basically the same as those floating globes you can get at museum gift shops. They didn't give you a good explanation of how it actually works.
OUYA 2.0
[i]fucking electromagnets, how do they work?[/i]
Now show us the 40lb generator you have to drag around in a wagon to power it for more than 10 seconds, guys. :v: Also, what the fuck is this even supposed to represent? It's uncaptioned and unexplained, it just comes after an extremely technobabbly explanation of why the floor has to be metal, but not magnetic: [IMG]https://s3.amazonaws.com/ksr/assets/002/763/992/3e4321b33cc2572f9edc63be23316aa3_large.gif?1413677101[/IMG] [QUOTE]four disc-shaped hover engines[/QUOTE] Someone get Insane Clown Posse on this one, I hear they're experts in this sort of miracle.
[QUOTE=lapsus_;46309743][i]fucking electromagnets, how do they work?[/i][/QUOTE] Each electron moving through the wire coil produces a small magnetic field. All of the small fields add together into a single field large enough to be useful. That feild interacts with some types of materials and exerts a force on them, equal and opposite to the force on the wire coil.
hey they stole my name
[QUOTE=thejjokerr;46309839]Why are people surprised the masses dont understand advanced physics?[/QUOTE] This is 9th grade stuff. Newton is basically the first scientist kids are taught about, isn't he?
feels like pro scam ks
Considering that they're actually offering rides on it, I wouldn't be as skeptical. [editline]23rd October 2014[/editline] [QUOTE=thejjokerr;46309879]Maybe I should've paid attention in class, but I can't remember having learned anything related to physics in high school other than newtons law and that little amount of knowledge gives me nothing I can use to test scientific nonsense for truth.[/QUOTE] You probably have shit physics education
[QUOTE=GoDong-DK;46309699]Anyone got a breakdown of how this was done?[/QUOTE] Electromagnetic levitation, it works and does what you expect, it's a board that hovers, on the downside it only works over metal surfaces like copper. [editline]23rd October 2014[/editline] [QUOTE=Makohu;46309880]Considering that they're actually offering rides on it, I wouldn't be as skeptical. [editline]23rd October 2014[/editline] You probably have shit physics education[/QUOTE] I would, the thing gargles cock, it technicaly works, for 7 minutes before the battery dies and it only works on metal surfaces, which means it pretty much wont work anywhere since we don't pave our streets with steel.
[QUOTE=bravehat;46309903]I would, the thing gargles cock, it technicaly works, for 7 minutes before the battery dies and it only works on metal surfaces, which means it pretty much wont work anywhere since we don't pave our streets with steel.[/QUOTE] Also, right now, you wouldn't want to go anywhere on this thing even if the streets were plated with Hendo-approved metals and battery life was magically infinite: [video=youtube;BuWflDnAO9s]http://www.youtube.com/watch?v=BuWflDnAO9s[/video]
For how it works and what it needs to work it may as well just be a board with a bunch of seated steel ball-bearings in it, would be a lot cheaper and would do the same stuff basically
[QUOTE=hypno-toad;46309949]For how it works and what it needs to work it may as well just be a board with a bunch of seated steel ball-bearings in it, would be a lot cheaper and would do the same stuff basically[/QUOTE] Considering the floor probably has to be near perfectly smooth (as opposed to, say, gravel), this could be a use for any mouse balls still sitting in some warehouse somewhere waiting for this newfangled optical mouse fad to pass. There, I've invented a hoverboard and my operating expenses will be $200, to make a few long-distance phone calls to China to talk to a man about some balls. brb, kickstartering this shit, new speedboats for all golds if it funds.
[QUOTE=GoDong-DK;46309699]Anyone got a breakdown of how this was done?[/QUOTE] the magnets are arranged in a similar fasion to how they are on a modern maglev train, it only gets less than an inch off the ground and is required to be used on a metallic surface so it can 'hover'
Watch the battery run out in 5 minutes, then the complaints start pouring in.
[QUOTE=elixwhitetail;46309943]Also, right now, you wouldn't want to go anywhere on this thing even if the streets were plated with Hendo-approved metals and battery life was magically infinite: [video=youtube;BuWflDnAO9s]http://www.youtube.com/watch?v=BuWflDnAO9s[/video][/QUOTE] It sounds like it's powered by souls :v:
How do you steer something that has no friction? Also the board is annoyingly loud in the demo video.
[QUOTE=elixwhitetail;46309943]Also, right now, you wouldn't want to go anywhere on this thing even if the streets were plated with Hendo-approved metals and battery life was magically infinite: [video=youtube;BuWflDnAO9s]http://www.youtube.com/watch?v=BuWflDnAO9s[/video][/QUOTE] That looks extremely awkward.
[QUOTE=elixwhitetail;46309943]Also, right now, you wouldn't want to go anywhere on this thing even if the streets were plated with Hendo-approved metals and battery life was magically infinite: *video*[/QUOTE] Yeah! Riding a thing that just floats and doesn't respond to input is great fun! Really worth 10 grand!
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