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Allison is part of the Edinburgh University Gliding Club. She shares her experience with flying planes without engines as part of her university experience, and explains the physics of the plane designs.
If a tree falls in a forest and no one is around to hear it, does it make a sound? This age-old philosophical riddle has found fresh foundation in modern physics, where the question morphs into something even stranger: Does reality exist without an observer?
At first glance, you might think the answer seems obvious. Of-course reality exists independently of us; planets orbit stars, black holes devour matter, and the red spot storm on Jupiter goes on whether or not we’re watching. But quantum physics, with its counterintuitive effects and observer-based mathematics, complicates this seemingly simple answer. Let’s explore this rabbit hole.
Have you ever wondered why, we can’t rewind our lives like a video? Why spilled coffee on the desk doesn’t spontaneously return to the mug or why vapor doesn’t retrace its path into ice cubes? The everyday experience of time “flowing” in one direction feels so natural that we barely question it – until we pause to ask: Is time truly forced to march forward, or might there be cracks in the arrow that point otherwise?