http://www.bing.com:80/search?q=Precondition+Example+PythonSearch resultshttp://www.bing.com:80/s/a/rsslogo.gifhttp://www.bing.com:80/search?q=Precondition+Example+PythonCopyright © 2026 Microsoft. All rights reserved. These XML results may not be used, reproduced or transmitted in any manner or for any purpose other than rendering Bing results within an RSS aggregator for your personal, non-commercial use. Any other use of these results requires express written permission from Microsoft Corporation. By accessing this web page or using these results in any manner whatsoever, you agree to be bound by the foregoing restrictions.https://apple.stackexchange.com/questions/230752/how-does-iphones-compass-workHow exactly does iPhone's Compass app work? Is there some kind of chip sensitive to Earth's magnetic field or does it deduce the device's orientation from GPS and other location data? Or a combination of both? If there are differences among different models of iPhone, of course I'd be interested in learning them.Tue, 04 Aug 2026 19:32:00 GMThttps://apple.stackexchange.com/questions/62191/can-magnets-harm-an-ipadYou should be fine. As you note, there are magnets (which are actually fairly strong for their size) in the iPad and Smart Cover. There are no magnetic components aside from the Smart Cover attachment points and the unlock sensor—there's a magnetometer for the compass, but it doesn't use a magnet. Furthermore, the whole magnets damaging hard drives thing is a bit of a myth. You can wipe them ...Sun, 23 Aug 2026 02:35:00 GMThttps://apple.stackexchange.com/questions/14643/how-does-the-digital-compass-figure-of-eight-waving-for-calibration-workWhat is the logic behind the "wave your device in a figure of eight to calibrate the compass"? How does this work?Fri, 21 Aug 2026 20:09:00 GMThttps://apple.stackexchange.com/questions/225450/does-the-iphone-gps-work-in-an-airplane-cruising-between-30000-40000-feetI have a very basic question: if I enable GPS in my iPhone when in an airplane cruising at an altitude between 30000-40000 feet (roughly 9-12 km), will the GPS actually give valid data? I read a c...Mon, 17 Aug 2026 09:08:00 GMThttps://apple.stackexchange.com/questions/98649/does-airplane-mode-disable-gpsYes, airplane mode shuts down the radios that amplify all antenna circuitry. Compass isn't affected by airplane mode other than not being tuned by GPS location. Your observed relative changes will be mostly unaffected but absolute accuracy could suffer between one and ten degrees on much of the globe. Of course the GPS signals still hit the iPhone case and antennas, just the hardware doesn't ...Fri, 07 Aug 2026 06:35:00 GMThttps://apple.stackexchange.com/questions/244876/how-does-my-phone-tell-me-my-elevation-even-though-im-nowhere-near-a-cell-towerI have the compass app (Comes with the phone) on my iPhone 6 and it can still tell me my elevation even though I have no service, why is this? Is there a magnet or something similar in the phone?Mon, 24 Aug 2026 08:03:00 GMThttps://apple.stackexchange.com/questions/42915/complete-documentation-of-the-ios-settings-apps-url-schemeThe iOS Settings app provides an URL scheme (prefs:) which can be used to open the app directly on a particular page from other apps, in particular, shortcut apps such as Launch Center. There areSun, 23 Aug 2026 00:04:00 GMThttps://apple.stackexchange.com/questions/47775/where-does-macports-install-programsUnless you performed a custom installation of MacPorts everything installed by MacPorts is located conveniently at /opt/local if you perform a directory listing at that location you should see the structure for port installed programs which should be installed in bin or sbin directories. user$ ls bin etc include lib libexec man sbin share var As noted in the MacPorts Documentation 2.3. Install ...Sun, 23 Aug 2026 16:03:00 GMThttps://apple.stackexchange.com/questions/48481/how-do-ipads-detect-when-a-cover-closesThe one provided by the link claims it provides this functionality through a magnetic strip. Does this mean iPads have the ability to sense nearby magnetic fields built in? Why and how does this work? PS. It appears Apple's Smart Covers provide this functionality too.Sun, 23 Aug 2026 08:18:00 GMThttps://apple.stackexchange.com/questions/400009/a-software-update-is-required-to-use-this-startup-disk-does-not-updateA software update is required to use this startup disk - does not update Ask Question Asked 5 years, 11 months ago Modified 1 year, 9 months agoTue, 04 Aug 2026 08:19:00 GMT