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Show HN: We put an iPhone on the front wheel of a car

blog.evilwindowdog.com

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Re: Show HN: We put an iPhone on the front wheel of a car

#42

Kudos to you guys for trying to solve the VVS problem! For your second experiment, may I recommend attaching the iphone to the disc of a variable-speed angle grinder? You'll get a much larger range of speeds, as well as the ability to aim the camera freely. You'll be able to test how your accelerometer algos handle pitch and yaw IN ADDITION to centrifugal force!

Developer of the app here. One step ahead of you ;) http://imgur.com/tdnympM

I can't wait to see what that's going to look like. Just be careful it doesn't fly off and injure you!

Re: Show HN: We put an iPhone on the front wheel of a car

#43

Kudos to you guys for trying to solve the VVS problem! For your second experiment, may I recommend attaching the iphone to the disc of a variable-speed angle grinder? You'll get a much larger range of speeds, as well as the ability to aim the camera freely. You'll be able to test how your accelerometer algos handle pitch and yaw IN ADDITION to centrifugal force!

Developer of the app here. One step ahead of you ;) http://imgur.com/tdnympM

[deleted]

Re: Show HN: We put an iPhone on the front wheel of a car

#45
post #23

Earlier quoted context omitted.

I'm getting motion sickness just thinking about it. Haven't even watched yet.

Do watch it, Great Experiment. Got Sick..

For those who do suffer from motion sickness (like me), be aware that while the effect might not be severe (no vomit for me), the headache lingers quite a while (~30 min for me) after watching the video closely full-screen....... Still, a fun experiment.

Re: Show HN: We put an iPhone on the front wheel of a car

#48

Thank you for the support! Here are 5 promo codes so you can try our app for free! http://codehookup.com/2291e14c

Absolutely blown away with the demo video (centripetal issues aside) though annoyingly I'm one of those 'other' users, so I have to ask: Anything android related in the pipeline?

"This is one of the developers of the app. The Android version will be available in the following month. We are planning on running the experiment on Android devices too!" - OP.

Re: Show HN: We put an iPhone on the front wheel of a car

#49

Kudos to you guys for trying to solve the VVS problem! For your second experiment, may I recommend attaching the iphone to the disc of a variable-speed angle grinder? You'll get a much larger range of speeds, as well as the ability to aim the camera freely. You'll be able to test how your accelerometer algos handle pitch and yaw IN ADDITION to centrifugal force!

Developer of the app here. One step ahead of you ;) http://imgur.com/tdnympM

I hope you're joking. If you do plan on doing this then please do it in a suitably strong wire cage, power it on remotely, make sure it is tied down very solidly and make sure nothing you care about (including you, significant others, co-workers, children, pets, possessions etc) is in the plane of rotation because this will fail spectacularly. Keep in mind that if the grinder becomes dislodged or unbalanced that the plane of rotation may vary rapidly. Too rapid to get out of the way. The iphone will desintegrate due to the forces involved and the shrapnel will cause serious injury.

Please do not do this unless you really know what you're messing with (and if you do then you won't).

On second thought, simply please do not do this. Spinning an iPhone up to 10K rpm or higher is a very bad idea, the label reads 11K rpm max, 850W, those things don't usually have soft-start so it'll just fire up and start throwing things.

Appeal to authority fallacy comes free of charge: I've had a pretty serious metal workshop and have seen several interesting interactions between angle-grinders and various objects in otherwise controlled circumstances, it is astounding how fast things can go wrong. Just having a grinder disc shatter on you can take you completely by surprise even if you know the danger, this is far more dangerous, it is Darwin award material.

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