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13 votes
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The first few moments of an explosion can't be simulated yet. But there's a team at the University of Sheffield working on it.
12 votes -
I am a cosmologist, AMA
Ok ok disclaimer, I am a cosmology PhD candidate, don’t have the degree yet. However I do feel comfortable at this point calling myself a cosmologist (I think for the first time ever). In any...
Ok ok disclaimer, I am a cosmology PhD candidate, don’t have the degree yet. However I do feel comfortable at this point calling myself a cosmologist (I think for the first time ever). In any case, with all the new people here, I think an AMA might be fun. I will try my best to answer all of the questions I get asked, but it may not happen quickly!
A bit about my research. I study the conditions in the early universe, specifically when the cosmic microwave background was forming, and I use CMB data to test our understanding of this era. The CMB formed roughly 300,000 years after the big bang, when the universe was 1/1000th its current size. The patterns that we see in the temperature fluctuations of the CMB can tell us a lot about the universe at this early time, and specifically we can try to use them to see if anything ‘unexpected’ happened at this time, like a hitherto undiscovered particle annihilating into ‘normal’ particles (for example).
Ask me anything about the early universe, or physics writ large, and I will do my best to answer!
51 votes -
The unique merger that made you (and ewe, and yew)
10 votes -
Ronald Reagan and the biggest failure in physics
5 votes -
Turning paint thinner into cherry soda
25 votes -
Scales or feathers? It all comes down to a few genes
8 votes -
Sucralose breaks up DNA
11 votes -
Multi-layer reactive foil: no fuel, no oxygen, tons of heat
9 votes -
How Sweden and Denmark became rare bright spots for Europe's pharma industry
3 votes -
Octopuses may have vivid nightmares, video suggests
5 votes -
Why is my dryer radioactive?
12 votes -
How is AI impacting science?
4 votes -
Cognitive endurance as human capital
6 votes -
MIT’s vaccine printer: The game-changer in vaccine distribution
3 votes -
Is the staggeringly profitable business of scientific publishing bad for science?
8 votes -
How NASA reinvented the wheel
2 votes -
How medieval thinkers foreshadowed modern physics in investigating the character of machines, devices and forces
4 votes -
Scientists at the University of Helsinki say they have demonstrated that certain strains of Desulfovibrio bacteria are probable causes of Parkinson's disease in most cases
15 votes -
Ancient Earth map | Map showing modern locations across millions of years
14 votes -
Fabien Cousteau's Proteus underwater research station will be signing a new research agreement with NOAA
6 votes -
Why the brain’s connections to the body are crisscrossed
6 votes -
Wire EDM is an insanely precise manufacturing method. But there's a trick behind these objects that appear to have no seam.
7 votes -
How our team overturned the ninety-year-old metaphor of a ‘little man’ in the brain who controls movement
4 votes -
Double descent in human learning
5 votes -
Quantum computers: What can they do?
4 votes -
Parrots taught to video call each other become less lonely, finds research
10 votes -
The Big Five are word vectors
4 votes -
It's the Matrix, but for locusts
5 votes -
Space Elevator
11 votes -
Prince Rupert's Drop exploding in molten glass
6 votes -
Dispelling common myths about bed bugs
8 votes -
Green steel: Can we make steel without CO2 emissions?
5 votes -
The gambler who beat roulette
12 votes -
Artificial intelligence in communication impacts language and social relationships
2 votes -
Can water solve a maze?
11 votes -
The myth of the alpha wolf
6 votes -
One more reason to hate cockroaches
19 votes -
An aperiodic monotile exists!
21 votes -
Lord of the Rings–quoting performance wins this year’s ‘Dance Your PhD’ contest
5 votes -
Breakthrough as eggs made from male mice cells
7 votes -
Buried deep in the permafrost, the Svalbard Global Seed Vault is opening its doors to the world with the launch of a new virtual tour to mark its fifteenth anniversary
9 votes -
How do we fix and update large language models?
6 votes -
Over-reliance on English hinders cognitive science
4 votes -
Do we see reality as it is? | Donald Hoffman
7 votes -
Researchers successfully prevent peanut allergic reactions in mice, blocking onset in its tracks
5 votes -
The story behind the Packing Chromatic paper
5 votes -
“What If?” Eleven serious answers to slightly crazy science questions
3 votes -
This microscope uses touch. Gelsight is a microscope that presses gel into the object of study.
9 votes -
Scientists use CRISPR to insert an alligator gene into a catfish. Disease kills off 40% of farmed catfish. This gene protects them.
8 votes