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/sci/ - Science & Math

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>> No.9696622 [View]
File: 2.97 MB, 540x360, Advanced Engineering.webm [View same] [iqdb] [saucenao] [google]
9696622

>>9696082
2D pictures can't be optical illusions.

>> No.9229598 [View]
File: 2.97 MB, 540x360, Advanced Engineering.webm [View same] [iqdb] [saucenao] [google]
9229598

>>9229567
>how to spot the newfag: example post

>> No.8586830 [View]
File: 2.97 MB, 540x360, Advanced Engineering.webm [View same] [iqdb] [saucenao] [google]
8586830

>>8586828
>dislike thing
>post about thing to discuss thing disliked

Great thread.

>> No.8284542 [View]
File: 2.97 MB, 540x360, Advanced Engineering.webm [View same] [iqdb] [saucenao] [google]
8284542

>>8284525
>Is this true?

Not at all.

Most of the videos that have "working" versions of these are hoaxes that use an airflow off camera to spin the "motor".

The main reason for these not working is due to the "cogging" effect between one magnet field and the next. This robs power from the spin even if you manually spin it to get it started. The more magnets you add the more "cogs" there are, the smoother it will be, but it reduces the pushing force and still robs it of power. One of these without "cogs" and a full field is just a magnetic bearing. All of these are just magnetic bearings of varying efficiency. You must input the energy into them for them to work.

>>8284534
Even that has nothing to do with this.

>> No.7942660 [View]
File: 2.97 MB, 540x360, Advanced Engineering.webm [View same] [iqdb] [saucenao] [google]
7942660

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