“Not only is the universe stranger than we imagine, it is stranger than we can imagine.” - Sir Arthur Eddington Have you ever imagined a ghost walking through walls? In the classical world, that’s impossible — solid matter can’t simply pass through another solid object. Yet, in the mysterious world of quantum physics, something similar happens all the time. Subatomic particles — electrons, protons, and even atoms — can tunnel through barriers that, according to classical physics, they should never cross. This bizarre phenomenon is known as Quantum Tunneling , and it’s one of the most intriguing and revolutionary concepts in modern science. It not only challenges our intuitive understanding of nature but also powers technologies that shape our everyday lives — from flash memory to nuclear fusion in stars. Understanding the Quantum World To understand tunneling, we need to step away from the rules of the everyday world — where a ball must roll over a hill to reach the o...
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