When you bake a loaf of bread or a batch of muffins, you position the dough inside a pan. As the dough is being heated in the oven, it increases in size and fills the baking pan. Any chocolate chips or blueberries in the muffin batter find themselves spreading further apart as the muffin batter expands.
The expansion of the universe is often compared to a piece of dough being placed in a baking pan and expanding outward. However, this analogy has a flaw – while dough expands into the confines of its container, the universe is expanding within its own boundaries, not into something else.
It can seem like a brain twister, but everything within the universe is part of the universe itself. In an ever-growing universe, there’s no container or edges; it’s more like a huge, undivided expanse. If we were to imagine a boundary, that boundary would itself be part of the universe and would expand along with its growth.
It requires extensive knowledge to understand these theories, and since they’re rooted in concepts beyond our everyday reality, it’s a bit analogous to asking what is more north than the North Pole; it’s a unique and difficult-to-conceive situation.
A different way to understand the cosmos’s growth is to observe how other galaxies are receding from our own, the Milky Way. By tracking how other galaxies move away from ours, scientists have discovered that the universe is expanding. They define this expansion as the rate at which other galaxies move away from us, allowing them to conceptualize it without picturing something for it to expand into.
The expanding universe
Since the name implies it, it was a period when the universe underwent a time of swift expansion.
The universe rapidly condensed and cooled, giving rise to the formation of matter and light. Ultimately, it developed into the universe we know and recognize today.
In 1922, he definitively demonstrated through mathematical proof that the universe is expanding.
This confirmed the entire universe is expanding, and the rate of its expansion is growing.
A phenomenon continues to perplex astrophysicists. What is the explanation behind the universe’s ability to resist the force of gravity holding it together while simultaneously expanding and causing objects throughout the universe to move away from each other? Moreover, its rate of expansion is accelerating with time.
Scientists often use an analogy called the expansion funnel to illustrate how the universe’s expansion has accelerated since the Big Bang occurred. Envision a funnel with a broad base, curving inward. The narrow end of the funnel signifies the earliest moments of the universe. As you move to the right, time progresses. The widening of the funnel reflects the universe’s expanding nature.
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About 5 percent of all energy is made up of the force from everyday matter, which includes the Earth, the Sun, and everything else we can see.
Outside the expansion funnel
What’s a step beyond the conversion-funnel, in terms of the customer journey?
Including multiple universes in a single model could serve as a potential solution to some of the issues scientists are experiencing with their present models of the universe.
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The quantum realm has significant differences compared to our normal perception of reality.
In everyday life, objects act in predictable ways. They aren’t made up of tiny particles that have discrete amounts of energy. Furthermore, objects don’t come into being suddenly or disappear without a reason.
In the quantum world, energy is essentially binary – it’s either on or off. In contrast, the everyday reality we experience operates on a spectrum, allowing energy to exist at various levels of intensity.
doesn’t support that idea.
, and many others.
The universe is expected to keep expanding, and this will cause the average distance between our galaxy, the Milky Way, and most other galaxies in the universe to continually increase.
, Instructor of Physics,
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