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advent calendar 2020
Plus Advent Calendar Door #24: In memory of John D. Barrow
This year we lost our dear boss, friend and mentor, John D. Barrow. Here is what we wrote on the occasion of his death.
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Plus Advent Calendar Door #23: Are the constant of nature really constant?
If they are, the Universe could be really different!
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Plus Advent Calendar Door #22: Memories of Stephen Hawking
We celebrate Stephen Hawking with some fond memories of his colleagues.
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Plus Advent Calendar Door #21: How many dimensions are there?
Could there be more than three?
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Plus Advent Calendar Door #20: Strings to the rescue?
A possible way of resolving the greatest problem of physics.
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Plus Advent Calendar Door #19: What's the problem with quantum gravity?
Explore the biggest problem in modern physics.
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Plus Advent Calendar Door #18: The shape and fate of the Universe
As we are well over half way through advent, we thought today we'd look towards the future of the Universe
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Plus Advent Calendar Door #17: From planets to universe
On the 17th day of advent we explore the birth and death of stars.
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Plus Advent Calendar Door #16: Dark energy
On the 16th day of advent we explore the mysterious force that drives our Universe apart.
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Plus Advent Calendar Door #15: Dark matter
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Plus Advent Calendar Door #14: The cosmic afterglow
On the fourteenth day of advent, we consider the night sky...which isn't actually black, but permeated by the faint afterglow of the Big Bang.
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Plus Advent Calendar Door #13: What happened before the Big Bang?
There are some interesting answers to this question, including that we live in a bubble multiverse!
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