Place the neodymium magnets on the track and place four or five ball bearings in a line touching one side of the magnets. When you are ready to fire it, nudge the single ball bearing so it slowing rolls toward the magnets.
The next big software update for iPhone is coming sometime in April and will include a Food section in Apple News+, an easy-to-miss new Ambient Music app, Priority Notifications thanks to Apple Intelligence, and updates to apps like Mail, Photos, Podcasts, and Safari. See what else is coming to your iPhone with the iOS 18.4 update.
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