Johnny Galecki
Leonard Hofstadter
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Episode Guide
- 1. Pilot Sep 24, 2007
- Leonard likes new neighbor Penny, but his roommate thinks he is chasing an impossible dream.
- 2. The Big Bran Hypothesis Oct 1, 2007
- Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
- 3. The Fuzzy Boots Corollary Oct 8, 2007
- Unhappy that Penny is seeing someone, Leonard summons the courage to ask another woman out.
Learn how the big bang theory explains the origin of the universe, the expansion of space, and the creation of matter and energy. Find out the evidence, the evidence, and the future of the universe based on the big bang idea.
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Apr 22, 2024 · In 1927, an astronomer named Georges Lemaître had a big idea. He said that a very long time ago, the universe started as just a single point. He said the universe stretched and expanded to get as big as it is now, and that it could keep on stretching. What an Idea! The universe is a very big place, and it’s been around for a very long time.
Time, space and matter all began with the Big Bang. In a fraction of a second, the Universe grew from smaller than a single atom to bigger than a galaxy. And it kept on growing at a fantastic rate. It is still expanding today. As the Universe expanded and cooled, energy changed into particles of matter and antimatter.
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The Big Bang is the main theory that explains the origins of the universe – how everything was made, including the stars, the planets, and everything that lives on those planets, like us! It’s widely believed by most astronomers, as it came about through scientific understanding of physics and chemistry. Even though it’s a bit of a silly name for s...
It is believed by most astronomers that the universe started as an extremely hot, dense, bubble-like space. It consisted of light and energy, too small to be seen by the human eye – not that we existed back then. The heat and pressure from all of these particles squeezing against each other resulted in the Big Bang. This happened nearly 14 billion ...
10 billion years after the Big Bang, our solar system and the Sunformed. That includes the planets and their moons. It didn’t all happen at once. The Earth began with rocks whizzing through space and smashing into each other. Eventually, some rocks merged together into one bigger rock that we now call home. Back then, it didn’t have oceans, or plan...
If you had to pick one scientist who created the idea, it would have to be Georges Lemaître, a Belgian priest, mathematician, and astronomer. In 1927, he first had the idea that the universe began as a single point – like the pinhead mentioned earlier – and then stretched and expanded into what we know now. Lemaître was 33 at the time and working a...
The study of the universe, including its creation and its development, is called cosmology.We used the term ‘nearly 14 billion years old’ earlier, but that’s not accurate enough for scientists! It is believed by astronomers that the universe is 13.8 billion years old.In 2012, the Wilkinson Microwave Anisotropy Probe (WMAPfor short) was launched to determine how old the universe was by measuring thermal radiation left over from the Big Bang.Even though Lemaître came up with the idea in 1927, the theory of the Big Bang really only began to take root in the 1940s. It caused a lot of debate between astronomers who couldn’t decide if it w...With any luck, the information you've learned from reading this far will have given you a good knowledge of the Big Bang! Armed with this newfound expertise, your learners will be able to go out and investigate the universe and how it began.
Jul 26, 2023 · The Big Bang Theory is the leading explanation for how the universe began. Simply put, it says the universe as we know it started with an infinitely hot and dense single point that inflated and ...
