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2009-12-16
, 05:29
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Posts: 27 |
Thanked: 17 times |
Joined on Sep 2009
@ Philadelphia, USA
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#42
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Originally Posted by Bytales
I need a facepalm on the double...
Well, at the top of the flight, the acceleration is zero. If there is a way you can detect this with the accelerometer on the phone, that would be the moment to take the picture. I don't know how the accelerometers work on the n900, but that's the main idea.
because your idea was already addressed at least twice in this thread:
Originally Posted by cpscotti
Well.. you should all try accDisplay since physics are not helping. The reason why the phone's accel. readings are all zero (and not 1g) is because all the phone parts (including the accelerometer's internals) are (de)accelerating equally. Accelerometers measure acceleration differences relating to "free-fall".
Wikipedia might help
For example, the ISS "feels like" zero G (and indeed a accelerometer there will read 0) only because it's indefinitely falling towards earth: orbiting.
...
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2009-12-16
, 13:13
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Posts: 53 |
Thanked: 4 times |
Joined on Jan 2009
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#43
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Originally Posted by gamof
If the velocity changes the acceleration cannot be constant. Thats the very definition of acceleration, acceleration means how the speed changes in time.
The acceleration is constant. The velocity changes. At the top of an arc, the velocity is zero, but it begins to fall due to the constant acceleration. 9.81 meters per second towards Earth. Basic physics, here.
Sorry, just being really anal about technicalities here.
Youre right, at the top of thearc velocity is zero, but the phone has accelerometers, not velocimeters. So at the top of the ark, i think the accelerators in the phone detect 0 acceleration. I don't know exactly how they are build and what exactly are detecting but i think my reasoning is correct.
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2009-12-16
, 13:45
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Posts: 112 |
Thanked: 122 times |
Joined on Dec 2009
@ London, United Kingdom
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#44
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Originally Posted by Bytales
There is wrong and there is VERY WRONG;
If the velocity changes the acceleration cannot be constant. Thats the very definition of acceleration, acceleration means how the speed changes in time.
Youre right, at the top of thearc velocity is zero, but the phone has accelerometers, not velocimeters. So at the top of the ark, i think the accelerators in the phone detect 0 acceleration. I don't know exactly how they are build and what exactly are detecting but i think my reasoning is correct.
Your reasoning is VERY WRONG.
Dou you have a n900? can you please use the accdisplay app? (on extras-testing now).
Originally Posted by bonerp
Yes, I agree with you. That's why since version 0.9 the "Hello ****ers" is out.
sorry am I the only one who thinks its not really appropriate for this type of language on an app???
Originally Posted by mikec
Really, a PORTRAIT MODE on this app won't help much since it will be switching portrait-landscape-portrait-landscape during "take-off" and specially during landing and thus eating lots of CPU and then probably messing up with the time readings (start & end).
With all this accelerometer action there seems to be a missing feature PORTRAIT MODE
App is in going to extras-testing this afternoon.. please give it some thumbs up!
__________________
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
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2009-12-16
, 16:11
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Posts: 345 |
Thanked: 100 times |
Joined on Nov 2009
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#45
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Please show your record )) . My record is about 4m but I dont want to try more
Last edited by soleil; 2009-12-16 at 16:16.
Last edited by soleil; 2009-12-16 at 16:16.
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2009-12-16
, 16:43
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Posts: 112 |
Thanked: 122 times |
Joined on Dec 2009
@ London, United Kingdom
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#46
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Originally Posted by soleil
Man! My record is about 1.9 (indoors) and that's totally enough for me!
Please show your record )) . My record is about 4m but I dont want to try more
I could do waaaay better with my 3410 but those were other times.
__________________
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
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2009-12-17
, 11:10
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Posts: 112 |
Thanked: 122 times |
Joined on Dec 2009
@ London, United Kingdom
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#47
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Hey everyone.. app on extras-testing now... please test and vote..:
http://maemo.org/packages/package_instance/view/fremantle_extras-testing_free_armel/n900fly/0.1.4
Also.. check accDisplay:.. also on testing.. =] vote!
Thanks anyway..
http://maemo.org/packages/package_instance/view/fremantle_extras-testing_free_armel/n900fly/0.1.4
Also.. check accDisplay:.. also on testing.. =] vote!
Thanks anyway..
__________________
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
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2009-12-17
, 13:24
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Posts: 909 |
Thanked: 216 times |
Joined on Nov 2009
@ Bremen, Germany
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#48
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Originally Posted by ewan
feature want! :d
i wonder if you can get it to take a photo at the top of the throw....
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2009-12-17
, 13:27
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Posts: 112 |
Thanked: 122 times |
Joined on Dec 2009
@ London, United Kingdom
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#49
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That's the surprise for V. 2...
__________________
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
Happy n900 owner!
Check my apps: n900fly, accdisplay and the "desktop command execution" widget!
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2009-12-28
, 17:32
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Posts: 105 |
Thanked: 62 times |
Joined on Aug 2009
@ Finland
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#50
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It seems that I cannot reply in the downloads website: http://maemo.org/downloads/product/Maemo5/n900fly , so I will comment here about problems with n900fly.
I installed the program, started it and threw my n900 in the air couple of times (1-2 meters). Nothing happened. All numbers still 0.0 after the throw. Rebooted N900 and tested again. Still nothing. Installed AccDisplay to make sure that accelerometer works. Accelerometer seems to work.
I installed the program, started it and threw my n900 in the air couple of times (1-2 meters). Nothing happened. All numbers still 0.0 after the throw. Rebooted N900 and tested again. Still nothing. Installed AccDisplay to make sure that accelerometer works. Accelerometer seems to work.
Sorry, just being really anal about technicalities here.