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Videos (195) | Sift Talk (11) | Blogs (14) | Comments (447) |
Videos (195) | Sift Talk (11) | Blogs (14) | Comments (447) |
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The Paradox of an Infinite Universe
There’s no paradox, there no such thing as “infinity” in reality.
Infinity is an unreal mathematical concept like “i” (imaginary numbers that are the square root of a negative number).
Useful in calculations but really it’s just a placeholder for our lack of understanding about how the universe works (or a simplistic lie to evade giving a difficult, long, and incomplete explanation) , it’s not something found in nature.
Why not a mobius toroid? …or maybe a multidimensional toroid that’s (somehow) a donut in every direction? …or maybe both at once? Have some imagination, physicists. Don’t limit yourself to only the dimensions you perceive or how you see them
Time/space could be something like this and we only perceive the point where all 3 axis converge….
newtboy (Member Profile)
Your video, See a NASA Physicist's Incredible Origami, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
BSR (Member Profile)
Your video, How Physicists Proved The Universe Isn't Real, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
What Was Happening Before the Big Bang?
My take on the word universe... When i hear theoretical physicist and astrophysicists use the word, they are most always (from what i've observed) referring to our universe. The one created by the big bang. The word universe meaning is and has evolved and will probably continue to evolve in the future. Really depends on who is using it. Seems to me many laypersons use it different than those who study it. Always important to be on the same page regarding words meanings when trying to discuss such topics. Also i'm no pro, just a fan
The World's Coolest LEGO Set!
Adding YouTube Video description as I thought some might like to view the paper they reference in the video.
Our LEGO insulator paper: https://www.nature.com/articles/s41598-019-55616-7
A world leading team of ultra-low temperature physicists at Lancaster University decided to place a LEGO figure and four LEGO blocks inside their record-breaking dilution refrigerator.
This machine - specially made at the University - is the most effective refrigerator in the world, capable of reaching 1.6 millidegrees above absolute zero (minus 273.15 Centigrade), which is about 200,000 times colder than room temperature and 2,000 times colder than deep space.
Mordhaus (Member Profile)
Congratulations! Your video, Physicist Brian Cox Explains Black Holes in Plain English, has reached the #1 spot in the current Top 15 New Videos listing. This is a very difficult thing to accomplish but you managed to pull it off. For your contribution you have been awarded 2 Power Points.
This achievement has earned you your "Golden One" Level 357 Badge!
Mordhaus (Member Profile)
Your video, Physicist Brian Cox Explains Black Holes in Plain English, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.
Blues Brothers: Soul Man - SNL
BOSE? Bose-Einstein condensate
https://www.jpl.nasa.gov/edu/news/2016/7/27/they-really-do-exist-nasas-ghostbusters/
In a team of professional ghost busters, Anita Sengupta would most certainly be the enthusiastic and multi-talented leader. She’s already taken on roles developing launch vehicles, the parachute that famously helped land the Mars rover Curiosity, and deep-space propulsion systems for missions to comets and asteroids.
Sengupta and other members of the entry, descent and landing team for NASA's Mars rover Curiosity discuss the nail-biting details of the August 2012 landing.
Most recently, she’s carved out a niche as the project manager for an atomic physics mission, called the Cold Atom Laboratory, or CAL.
Since the mission was proposed in 2012, Sengupta has been leading a team of engineers and atomic physicists in developing an instrument that can see the unseen. Their mission is to create an ultra-cold quantum gas called a Bose-Einstein condensate, which is a state of matter that forms only at just above absolute zero. At such low temperatures, matter takes on unique properties that seemingly defy the laws of thermodynamics.
Best
Opening
Sketch
Ever.
TIMELAPSE OF THE FUTURE: A Journey to the End of Time
I'm thinking there are more years left until the end of the universe than there are atoms that make up the entire Earth and moon.
Just a hunch.
This just in:
https://futurism.com/the-byte/physicists-suspect-reality-illusion
The Better Boarding Method Airlines Won't Use
Physicist Cuts Airplane Boarding Time in Half has been added as a related post - related requested by RFlagg on that post.
The Better Boarding Method Airlines Won't Use
*related=https://videosift.com/video/Physicist-Reduces-Airplane-Boarding-Time-in-Half
Seems it didn't take as I forgot the *... so on to that one, to go back this way...
Quantum Mechanics (Now with Added Ducks) - exurb1a
I'm no expert either, but my late mother was a prominent classical physicist and what I saw from her fight against QM was that its foundations were built on unjustified assumptions going all the way back to the EPR experiments. The trouble is they've built a mountain of a theory on this precarious ground when they should be sticking to what they can prove to be true and working from there.
I dunno about that. There's lots of scientific evidence for quantum mechanics. It was disagreement between experimental results and theory which lead to the development of quantum mechanics in the first place. There have definitely been repeatable experiments demonstrating quantum entanglement, for instance.
String Theory, now, that's where you've got your unprovable assumptions. Whereas quantum mechanics at least has a big "we don't know why this is" hole in the middle, the string theory guys would just posit the existence of a bunch more dimensions to make the equations work.
Not that I actually understand the mathematics of any of it, mind you.
Donald Trump will never be President of the United States
Good one there! "I know you are but what am I?!"
Trump is not afraid to lead? What's he leading in exactly?
An idiotic, poorly thought out travel ban that won't help anything?
Mouthing off to our allies, making us look like idiots? (Mexico will pay for the wall... wait, maybe not, but they'll pay 20% tariffs.... well actually the Americans will be the ones paying... sounds like a solid plan everyone!)
Appointing unqualified cabinet members? Rick Perry for energy secretary.... the department he wanted to destroy... the department that he had no idea manages our nuclear stockpiles... the department whose previous leader under Obama was a nuclear physicist. It's now Rick fucking Perry.
The only thing he's leading in is in being the most embarrassing statesman this country has ever seen, arguing with celebrities on Twitter like a child. This moron was actually ranting about Schwarzenegger and The Apprentice ratings in his National Prayer Breakfast speech. All he had to do was just recite a short passage from the bible or something. But nope, not him. He needs to ask like a 12 year old.
We have a 70-year-old man, who also happens to be THE PRESIDENT, who can't control himself and act the part. He really has a few screws loose. There's no other explanation. But we did give him the nuclear codes! Yaay!
Leader - my ass. (Besides, it's Bannon leading him anyway.)
And you have the mind set of a fool.
Obama was a failure with no leadership on real issues
HE always lead from behind.
Trump is not afraid to lead.
Ricky Gervais And Colbert Go Head-To-Head On Religion
It doesn't make a difference to your ability to make a statement per se, but speaking to a friend of mine who is a physicist his answers are somewhat different. He's suggested that reading more about it will make it more confusing and that we are invariably wrong and don't know shit. I happen to agree with him. That's not to say one shouldn't attempt to gain as much knowledge as possible, but that it's not always as easy as "go read a text book and it should be nice and clear", because reading it should hopefully generate more questions than it answers. Hopefully I've worded that so it makes sense.
Anyway, the sum of human knowledge is dynamic steaming pile of shit. Yes, it's gotten us a long way. But we're still like dung beetles tending to it and it will be a long time until we can transform it into something close to the truth.
Maybe when we can integrate AIs into us we'll accelerate things a little.
Technically no but partially yes, my degree is in general science, but I gotta ask, what difference does it make to my statements what level of degree I have in which science? Can a person not know or study a topic without having a masters degree in it, IYO?
And just to explain, I went to college for nearly 12 years after numerous advanced college prep schools with no specific degree in mind, just because I like to learn and had the opportunities, and one day asked the counselor if I qualified for a degree, and I did. Most of what I studied was science...all fields of science available for study from astronomy to advanced molecular biology. Also some comparative religion, math, Latin (to help with science), and basic requirements (I get bored with English, for instance, and never excelled in it, but still had to take it), but science was always my focus.
Ricky Gervais And Colbert Go Head-To-Head On Religion
I gotta ask. Are you a physicist? As in "I graduated with a degree in physics from university" at the minimum.
No. To everything said.....no.
You need to learn way more about physics, theoretical physics, and quantum mechanics before asking and self answering questions that require a high level of understanding to answer.
You also need to realise, "I don't know" doesn't equal "God".
EDIT: Consider the circumstance you think He was in before creation, time, space, and energy (as we know it)....now just get rid of Him and you're there.