REALLY Big Experiments That Physicists Dream Of
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- čas přidán 7. 08. 2020
- In this video I talk about some proposals for REALLY big experiments that physicists have put forward and what we could do with them. Besides the Future Circular Collier, the Collider in the Sea, a radio telescope or neutrino source on the moon, or a gravitational wave interferometer the size of the solar system.
The mentioned references are:
BBC Interview with quote from King:
www.bbc.com/news/science-envi...
Collider in the Sea:
accelconf.web.cern.ch/napac20...
The Gizmodo article with the Beachman interview:
gizmodo.com/we-could-solve-th...
Radio telescope on the Moon:
www.nature.com/articles/d4158...
Neutrino-Source on the Moon:
arxiv.org/abs/2002.12190
Gravitational Wave Interferometer on the Moon:
arxiv.org/abs/2007.08550
Gravitational Wave interferometer from atomic clocks:
arxiv.org/abs/1501.00996 - Věda a technologie
“What is the use? Nothing really, but it keeps particle physicists employed”, the candor is on par with the size of the experiments.
Thank you, again. I adore this channel.
It's a joke when a little jab.
Completely concur....
"Nothing really, but it keeps particle physicists employed" - you said the quiet part out loud!
I wonder whether she'll say the same things if she's employed by the cern... anyway, we applaud her courage for contrarian opinions.. I wonder whether she has disproved the dark energy though
Yup. Greene and Krauss left the chat group.
Such Honesty. Thank You
F
@@gugisagara4489 I am glad she is saying this, but who knows if she would if at CERN. I have never talked to her and don't know her professionally, perhaps she would. And it's a good thing she is talking about the elephant in the room, i.e. ever bigger and more expensive machines, but then again that's what the military-industrial complex and the financial sector does, so why not the physicists? It's not likely we'd spend the money on the poor or universal basic income.
The general rule of employment is: if you're employed by organisation X or corporation Y or government Z you are expected (implied or explicitly stated) as a condition of your employment to follow their culture and policy; they generally fire or prosecute you if you don't. In a professional sense one ends up being ostracised, not getting grants, fellowships, or a post-doc, and eventually forced out. That's what humans do and have always done - even groups that are themselves outsiders or otherwise persecuted demand and enforce compliance from their members. That's why whistleblowers are always treated so harshly.
I love how brutally honest you are it's exciting to hear an opinion that can be critical and at the same time encourage better science.
Except she's not. She offers nothing better. She's just a critic with no better alternatives and a hater of those doing the hard work of discovery. She's just angry and ranting at physicists who DO make headway and DO the hard experiment & abstract math theoretical work. So she illogically condemns abstract theoretical math for "not doing experiments and getting real data" which she SHOULD praise for being CHEAP, SAVING MONEY,
AND she condemns physical experiments for "being expensive", which she SHOULD praise for "doing experiments & getting real data".
This is why I admire antinatalist animal rights groups like Peta and BirthStrikers & Animal Liberation Front (ALF)
speaking out against tortures & injustices.
@@theultimatereductionist7592 you clearly know nothing about her or the information forming her perspective
@@theultimatereductionist7592 ironically enough you complain a lot more than her while also making up stuff. also, peta as a good example?? wow
"Unfortunately ignoring economic reality is common for physicists" :D
As an MSc. physics I can confirm this.
The economics of paying peanuts to your researchers while spending billions on the project itself.
As physicist, you should say that your observations support this comment, because I do not see this in my colleagues :D ...
BOOUUUUU
Thorkil, this remarks is valuable.
the following long rant (?) has nothing to do wirg you, it just sparked the typing spree....
It made be realize again the condundrum scientist are caught up in. By definition openness and honest bevaviour is expected.
Unfortunately, denying or ignoring physical reality is the modus operandi in ecomics.
Models without feedback are no models but conjectures at best, and a collection of incompatible models cherry pickable, bound in a book is a book of faith.
When ones chooses so is it worth less then the cellulose fiat currency is printed on.
One started with a pure cellulose, then brought impurities like inks etc. Those are harder to get rid off when the cellulose is used as resource, e.g. as fuel for a stove or as starting point of cattlefeed.
Leave resourse x in an enclosed environment, and expect to become more.. even at exponetial rate. There is already a terminology for that; cognitive dissonance and theft to name a few.
If only a unification would take place, that would be grand.
I gave a collega a birthday present, albeit preaching to the own chorus... I laser cut the amount in dithered holes in fat numbers including the unit in KJoules of heat that would escape from the burning of that 5 "euro" note in air. Yep over the locations where it said "ecu/euros'
It is surprisingly close to 5 KJ.
He did frame like it was art, so i guess he liked it.
Nobody remembers directly or from history lessons the struggle between monetary systems versus resource systems. It should be referenced to something, be it turtles or heartbeats, time in second or Joules. pick one. but is cannot self create. That is like abusing taylors expansions.... "a stable growth of xyw percent per year."
Mind explaining what is stable about that concept of exponential presented as something linear?
Inflation..what a concept. diluting existing pools of trust is more of an accurate depiction.
Egos indeed, from the paper tower, not the ivory tower. Not the total mass-energy on this finite place we are still on and in together. It is a non zero sum fun play when not fooling your neighbour or ones-self. It is painfull, yes. But net more fullfilling.
I do think the scientific community is long long overdue with a system akin to the medical proffesionals already made happen thousends years ago.
Keep up your good work, i'll try feeding my kids and not succumb to the being right of the majority effect, even when that is not the case... ignorance is bliss indeed. knowing stuff is also a burden. you carry it well.
respect. I mean it.
I was too stressed to continue with an academic career after MSc and personal troubles as well as financial barriers.
sincerely.
signing off, a nanomaterials scientists.
There is lots of room at the bottom to... borrowing a quote.
@@blueredbrick This was a nice rant, but one thing struck a chord with me -- models without feedback. There are literally a million models of the cosmos now, and many of them work (more or less). They also worked perfectly 20 years ago (yes, I was alive then and saw the models and scientists saying they worked despite galactic rotation problems). They were obviously wrong, and "dark matter" or "dark energy", or "dark flow", or "evanescence" was not even assumed or coined. Unlike other sciences, cosmologists are doomed to just observe and make simulations and proclamations. And oh, how wrong they've been (although they will claim otherwise). We need a completely new measure for wrongness. I look forward to how wrong current cosmology is, yet again. Just don't forget or suppress it. Welcome to the "precision cosmology" era.
She is the most practically sound scientist I ever heard.
She's so practical she's pretty much an engineer.
go forth and listen to Freeman Dyson.
She's not your everyday celebrity muppet. She covers and considers the possibilities regardless of the current mantra.
Except she's not. She's just a critic with no better alternatives. She's just angry and ranting at physicists who DO make headway and DO the hard experiment & abstract math theoretical work. So she illogically condemns abstract theoretical math for "not doing experiments and getting real data" which she SHOULD praise for being CHEAP, SAVING MONEY,
AND she condemns physical experiments for "being expensive", which she SHOULD praise for "doing experiments & getting real data".
The Ultimate Reductionist could you please elaborate on your previous experience with academic or privately funded research.
So the earth’s diameter pulses every 21 minutes. Wow 😮 I didn’t know that. Love this channel 😍
Wish we knew when the next pulse would be...wait for it...wait for it...Zap! Whoa!!
News to me too. I wonder if its the residual fading wobble from the last big meteor hit, that one in Arizona, 60000 years ago.
Acharacle & Achiltibuie . That would be amazing but true ? I’d really like to know the real reason if known.
i think has something to do with the resonance between the gravitational pull of the sun, the moon, and possibly also jupiter. i knew the reason at one point, but i've forgotten now lol but i think that was it?
All matter pulses/vibrates!
...the smaller the object the more vibration.... and vice versa.
Congrats Sabine on 100k, your channel is the best for learning physics directly from real scientis! ❤️🤗
Thanks! I am super happy you find it useful!
It is indeed for learning physics in english. There is only one other channel I prefer. Second Place, thats still awesome 😂😂
@@tobiashinrichs5795 which is better?
@@petarcuric5003 czcams.com/users/UrknallWeltallLeben but I prefer it simply because it is in German, my native language. Makes it easier for me.
@Jay Tee Oh, I thought it was! 🤣
Love your weaving humor into the story, delivers the essence with a flare!
“And btw more evidence the Earth is not flat...” 🤣 Needs to be on a tshirt .
And now the Flat Earth people says that the pulsating "equator" is the flat rim of the flat earth pulsating... Anyway, I would buy a t-shirt!
It’s still just a theory sir.
@@Big_Tex Yep, but there might be a point, I just checked and the Earth looks pretty flat from here, now I'll put on my foil hat and run to the end of the rainbow to collect the gold before the unicorns get it...
There are no flat earth people. There are a few hardworking trolls, a handful of mentally ill people, but an awful lot of mindnumbingly stupid "I fucking love science" people who don't have much to feel smart about so they spend their time "debunking" the non existent flat earthers.
@@acesul8811 no evidence that all flerfers are trolls or mentally ill. The 'flat earth' philosophy stems from Christian fundamentalism. I.e. If the Earth is not flat then it can't be the center of God's universe. Accepting that the Earth is a sphere causes all the other beliefs to unravel. Of course, even the Catholic Church came to accept astronomy eventually, but recall that Galileo died in house arrest.
I find it amazing that you are able to point out the absurdities of particle physics with such a straight face. My compliments.
Congrats on 100k! Thank you for making your videos, I really enjoy them.
Congrats on 100k subs! Your content is fantastic, your brain is sharp, your music is wonderful.
This is why we should be accelerating funding for asteroid mining and space-based AI, not only because there's gold in them there rocks, but also because all of these grander experiments require autonomous robotics just like space mining does.
That's certainly an interesting idea.
Plus, Humans should falsify Bertrand Russell's Tea Pot Hypothesis.
With so many satellites "polluting" the sky, the future of astronomy is the far side of the Moon. We need the satellites, so getting rid of them isn't an option. For this purpose, better robotic systems will be needed, since long time manned missions to the Moon aren't feasible. It may be posible to develop a technology in which the observatories can be sent in modular pieces, and self-assemble once they are deposited on the Moon surface. This will also call for proper materials which can stand the temperature differences during travel and on the Moon surface. A project like this actually looks quite exciting from the engineering point of view.
Good video! I like the last project, the atomic clocks in orbit.
@@owowowdhxbxgakwlcybwxsimcwx No idea. However, putting satellites into the same orbit as Earth is within NASA's ability. It would be necessary to give the satellites some independent means of maneuver, to keep the satellites from drifting out of their assigned positions.
I saw something on this in a Joe Scott video, for a different project. But they can equip each clock with large solar panels, and use that electricity to power a plasma drive. Very little to no fuel is necessary. The power is very low, but if all it needs is an occasional nudge to keep it in place, it could last for decades.
@@owowowdhxbxgakwlcybwxsimcwx I think that was a bit of poetic license on Sabine's part. The orbital mechanics to get these to their required places is complex, but doable. Stationkeeping is also doable. I think where this project starts breaking down is the lasers that are needed have issues of being kept track of each other at such large distances. It almost certainly isn't impossible, but may be impractical for such an experiment. A laser detector at more than a hundred million miles would need to make constant adjustments in the range of picometers. The uncertainty of solar flux may be enough to make this impossible.
This is the problem with a lot of theoretical physicists: they confuse theory with application.
@@tarmaque Absolutely! I've had such problems explaining theoretical physicists why some ideas they propose are just impracticable, but also to some experimental physicists who don't handle the theory properly. A balance between theoretical and experimental knowledge is always needed.
@@jjeherrera I seem to recall a proposal for a less ambitious project on the same lines that was a constellation of three or four satellites at one of Earth's Lagrangian points (L4 or L5) that would be a few hundred kilometers apart. This seems to me to be a lot more realistic. An interferometer a couple hundred kilometers in length would be a lot easier than one a couple hundred _million_ kilometers in length, and I'm not certain that the larger constellation would really provide substantially better data. Like Sabine likes to point out, there seems to be a law of diminishing returns for larger and larger devices.
Thanks for this. Was fun to watch! Also: Congratulations for saving the last SpaceTime TOE live stream! 😉👍
Some form of great experiment on the moon would be interesting just for the progess it would require in term of logistic. Doesnt really matter which one, but the effort to set it up would advance space flight significantly. Just think about the required infrastructure to set it up and maintain. But for which one, probably telescopes on the far side are the most interesting ones. Dont have to be limited to 21cm astronomy, but we could build other kinds as well there.
Just as we have radar telescopes in large craters here on Earth, there are some very round craters on the moon, it may be the largest space telescope possible?
@@alphagt62 For example! But there are a lot of possible telescopes that could be build on the far side. Including optical ones without them having to deal with atmosphere - think Hubble, but with mirror sizes similar to the VLT in Chile.
With so many satellites "polluting" the sky, the future of astronomy is on the far side of the Moon. We need the satellites, so getting rid of them isn't an option. For this purpose, better robotic systems will be needed, since long time manned missions to the Moon aren't feasible. It may be posible to develop a technology in which the observatories can be sent in modular pieces, and self-assemble once they are deposited on the Moon surface. This will also call for proper materials which can stand the temperature differences during travel and on the Moon surface. A project like this actually looks quite exciting from the engineering point of view.
Congratulations on all the new subscribers!
I'm looking at doing a maths or physics degree in my spare time. This stuff is really interesting!
Keep up the good work and thank you for all the great content!
Love the channel and your book. Congratulations on 100k plus subscribers xx
thanks for explaining things in terms that i almost understand. Love your videos, both physics and music
Gratz on 100k, I'll see you on 1M soon!
congrats on the 103K subs...bravo. Hoping for new avenues for physics explainers and learners.
Congratulations on reaching this milestone of 100k subscribers and thank you again for all this wonderful content. 👍 👀
Awesome explanations in every video . Thank you .
Just finished your latest book, very entertaining and informative! I hope it has a favorable impact on the future of physics... You have both intellect and the courage of your convictions!
congratulation for having more than 100k followers. well deserved :)
6:37 the *excitement* on her face!!!
Germanic emotional nuances.
@@firstnamesurname6550 Exactly.
I first read that as excrement.
@@johngrey5806 :D
I get a very strong feeling that exciting Sabine would be a very rewarding experience!
Congratulations on 100k subscribers! 🎉🎊🍾
It is great to see such an intellectually entertaining channel expand it's subscriber base,surely in this case bigger is better?
Your frank honesty is refreshing!
I listened to Carl Sagan for many years in my youth. I know listen to Sabine also because she makes physic more fun!
This channel is a blast :D
100,000 subscribers is super exciting? What a super position you are in!
@Sabine Hossenfelder Your videos are succinct, yet densely packed with mountains of scientific information. They are a joy to watch, inspirational. Keep up the good work. Smart, _scientifically accurate_ videos are becoming a rarity on this platform.
Sabine is yet again spot on about the community of scientist. She examines the "Forest for the Trees" flaw within the community of scientist!
Grumpy Cat: I always look super excited.
Sabine: hold my cold beer 🍺
I just love your videos. All of them. Those I understand as well as those I don't. Thanks a lot
Congrats for the 100k subscribers, Sabine! 😊
About economy, that's really weird, because if you study it you realize that it's heavily based on nature... Resources aren't infinite.
Anyway, stay safe there with your family! 🖖😊
thanks for these amazing vids and information
Great job on 100k 👍 always great content
I come for the physics, and stay for the stand up. Learn and Laugh channel! One of my favorites. Danke!
Physics
czcams.com/video/nnkvoIHztPw/video.html
Oooooo... throwing shade at them flat earthers! Love it!
everyone, except flat earthers, loves it.
@Robin Hack well, the salt still flows....lol
Yeah that was really a hot take.
Physics is replete with examples of doing big ideas with smaller budgets. You float the idea and then brainstorm how to make it a reality. That is how Kip Thorne and Joseph Weber got to finally build the LIGO observatories. Dream big, focus on the parameters, build a small prototype, narrow the error bats, demonstrate feasibility, ask for more funding. Similarly, do a good job, ask for a raise, move to somewhere that values your ideas more. Sabine, you always raise interesting questions and are willing to challenge the orthodoxy, YEAH!
@8:00
I feel you've made good thoughtful points...however, I also remain convinced that of all the things we (various groups of humans, mostly through our various governments, but also other institutional vehicles of collective action) blindly waste unholy amounts of money on, science is the LEAST wasteful/problematic of these (to the extent it IS even something we "excessively waste money/resources" on).
Hello there Sabine. Excellent presentation as usual.
Amazing work!
100K subscribers! Congratulations Sabine that is a lot of hard work and a lot of great content!
WRT today’s video, would a satellite orbiting the far side of the moon be able to detect the dim emissions at 21cm? Sounds more feasible.
I love the idea of atomic clock gravitational wave astronomy, why don’t we do that here on earth?
Lost in a million comments but still wanted to note your milestone at, now I see, 112K subscribers. Quality attracts. Great stuff Dr. H.
OMG this video is amazing. I'll almost regret not being in research anymore just to circulate this vid over my former institute LOL
I really like the idea with the clocks. It doesn't sound too complicated or ridiculously expensive. It might even function as a gravitational telescope.
As much as I liked the moon stuff (it gives a solid usefulness to human settlement there), the clocks seemed pretty cool... But then, we could just go wild and send those across the whole solar system and make it ever bigger lol.
I heard somewhere that the Arecibo radio observatory was built an order of magnitude too large for the original purpose. Somewhere along the line they figured it out and just kept with the specs of 300 meter dish diameter. In this case bigger is better; it's definitely a bucket list item of mine to visit and watch them make some radio echos off the moons of Jupiter. In terms of these large moon projects I'm rooting for the LCRT first, but I'm biased since RF is kinda my thing.
I like the way you include references, so viewers can do some research.
Gratuliere 100k!!! 🎂👍😀🍾
*Congratulations on the 100k level and like the LHC more energy is being created as the number of subscriber particles increase*
Meaningless comment.
Physics stand-up comedy: "...more evidence that the Earth is not flat." I am still smiling at that 10 minutes later.
Flat Earth lol
I have been watching some of these videos, this is their latest"proof" that the Earth is not spherical, and they are seeking an explanation why the lighthouse in the video can be seen.
czcams.com/video/MPa8F9OMLAE/video.html
Jump across, leave some comments, and have a laugh 😀
@@_Andrew._ I don't understand why so many people are obsessed with ridiculous ideas. The less said about the absurd the better.
@@Chicken_Little_Syndrome I do understand.
They say silly things like "who needs things like empirical science, the scientific method and alike when you have 'theoretical' sciences to make up explanations about things."
I like your candidness.
Sabine is extremely witty, intelligent & a great asset to the world of modern science.
I like her bit about the Gulf of Mexico with energy collisions, though I suspect some people would not see the joke.
Keep going Sabine, I love a lady that utilises her full capacity to grasp physical realities in the world of science & physics embraces virtually everything worth knowing about.
It's a human desire to enquire into the nature of physics which satisfies that deepest of desires, to know how it all ticks & you contribute greatly to that thirst of knowledge.
Particle
czcams.com/video/nnkvoIHztPw/video.html
Physics has never been so lost. Do we really need a bigger experiment? Maybe. But, maybe we just need a bigger genius. I really like the idea of a radio telescope on the far-side of the moon. Great idea! ... and another great video!
I love this video. I love all the videos where she is snarky about other physicists ideas
7:00 and we could also summon Satan with those clocks.
Lol but that's the merkaba, not the pentagram.
@@brucanthwood That reminded me of Goethe's Faust
To sumon Satan you only need one clock ... an alarm clock in the morning...
Haha I thought the same thing! So are we sacrificing the sun to satan or are we turning the sun into satan?
Sabine, congrats on the 100k subs!
I think the efforts should be made first to generate electricity easier and better...what do you think of HB11 fusion using CPA lasers, btw
Really great explanations that non-physicists can ponder. Thanks!
Thanks Sabine!
As long as physicists look for particles, they will find particles. - Arnold Vobach, mathematician, 1982
How to turn wave into particle? Give it more energy.
As long as astronomers look for galaxies, they will find galaxies.
@@vladimirseven777 It is hypothesized that an energetic enough gamma ray could knock a real (not virtual) electron/positron pair right out of the vacuum. I don't think this would be true in a perfect vacuum -- but then again, what is a perfect vacuum? The actual vacuum is seething with below-threshold particle/anti-particle pairs.
@@onehitpick9758 I think you would like my experiment at unquantum.net
@@ericreiter1 Are you claiming light is not quantized? That's ridiculous
This is so cool! I hope something like this happens during my lifetime
Machine Learning Experiment - The idea is to connect earlier experiments as a carrier wave for theory. Train on the results of previous experiments. Use surrounding data as y = model(X) and see if you can classify the right result. This way you don't have to make costly experiements. You can make infinetly large virtual experiments using surrounding data to predict using the trained model. That is. The entire LHC,other sizes of colliders are themselves samples. // Per
Not related to the content, but I love all your backgrounds so much
Sabine, wie immer Top in Form :)
Thankyou Sabine
Wow! 100k subs when this video was published. 8mos later and closing in on 250k! (248k atm) Congrats!
CONGRATZ ON 100K
Now 102k subs. Congrats!
Watching your videos makes me regret less pursuing particle physics... but I still regret not completing my degree. Thanks for the awesome content and perspectives on things.
Love your content. This comment is just to increase your metrics for CZcams. Thank you, Sabine.
"So what do we do now?"
"I dunno, the same thing only bigger?"
"What will accomplish?"
"I dunno, science-y stuff I guess."
Congratulations on the record number of subscribers.
Sabine casually destroying flat earthers. Gotta love it.
Your cetisism and realistic views are very exciting, I like you
I loved your appearance in the group conversation on PBS Spacetime. It's too bad it was plagued by debilitating technical issues and was (somewhat understandably) taken down.
Radio Telescope on the Moon, Good Idea.
@@rogierbrussee3460 Rogier, Is the NCLE Working Yet?.
As to NASA they are Talking a Big Game on Lots of Space Projects but Progressing Very Very Poorly.
Would be Better if Europe Puts a Decent Size Radio Telescope on the Moon Plus a Base.
Thanks for Info.
@@chrisgriffiths2533 Yes they rolled out the antennas in november 2019, as far as I understand. www.astronomie.nl/dutch-antennas-unfolded-behind-the-moon-73
@@rogierbrussee3460 Let's Hope the Dutch and Chinese Share some of the Images, Data with the Global Public.
Thanks again for Info.
@@chrisgriffiths2533 Heino Falcke is a highly respected astronomer (e.g. he started the event horizon project). But these will be rather low resolution radio "images" of the 21cm radiation during the early universe.
@@rogierbrussee3460 Heino sounds like a Smart Bloke. Shame they did not Put a Reasonable Camera on the NCLE.
I live in Denver, Colorado and back in the 1980s we were one of the finalists for the location of the ”Superconducting Supercollider” project. It was very exciting but also sad when we weren’t selected.
Ignoring economic reality is an indication of being a good physicist.
Love your videos
boo
so a good physicist is someone who can persuade to import Dubai's networth in liquid Helium cooling for an experiment?
edit:sorry for me sounds a way to wash hands
@@alonsovm2880 Planet Earth has very limited reservoirs of Helium. Once Helium is extracted, and if exposed to the atmosphere, it will go beyond the earth's atmosphere and end up in the interstellar space. So, if somebody collect all the Helium you can extract and make a leak in such a gigantic apparatus, you will loose'em all, and all the other scientists will be very angry at you.
No, it really isn't. It shows you can take into account pragmatism and common sense when designing experiments that are in any way feasible. Otherwise you're restricted to thought experiments; while useful, can never truly prove or disprove anything.
Madam I really like your explanations thanks madam thank you very much!
Thank you
I agree with you on the collider
Me too.
czcams.com/video/nnkvoIHztPw/video.html
Video of smallest
Thank you for always firing my synapses!
Congrats! 😀
Thank you for being my physics teacher🖖
Sabine - Enjoyable video. My parents are academics but I am an engineer, Your video made me laugh. Thank you.
A great lecture as always.
Did anyone noticed any changes in Mrs. Hossenfelder's appearance?
At 4:26: your image of the Moon is in fact a mirror-image. It took me a moment to work out why the pattern of maria looks so odd!
We should always do some big science projects just because we can as a species. It is a signal of human technical progress and they bring awe and optimism to the people. But we should obviously prioritize those that we suspect will have the biggest scientific payoff. Space based LIGO seems awesome to me and is useful for collecting more data about black holes. Bigger colliders without a clear goal less so.
Thank Sabine for being one of the only sane voices out there.
The only one necessary experiment would be: measure the speed of light in vacuum in one direction with moving source and moving observer! The other important was: disprove the Lorentz-contraction with experiment.
Just for a moment I thought you were actually supporting Catherine's dark side project.
Loving the humour.
Btw, is Matt going to publish that discussion. I loved it.
That proposed experiment with the atomic clocks left in sun orbit is great! Orders of magnitude cheaper than building a big interferometer on the moon, and orders of magnitude bigger and more precise. And it got me thinking: would it be possible to use the navigation satellites to measure gravity waves?
I built a particle accelerator the size of the galaxy and all I got for it was this lousy T-shirt.
And the t-shirt said: "Big fleas have little fleas, upon their backs to bite 'em. And little fleas have littler fleas, and so ad infinitum."
Got Skippy?
I am not a particle physicist, but I did have a physics court in the higher secondary or plus 2. I know what a TeV means. It's equal to the potential energy of an electron that is 10^12 volts high, i.e. it can fall towards a positive charge by 10^12 volts.
Congratulations Sabina for having 100K sobscribers
I'd say the gravitational detection by atomic clocks with satellites around the sun is realistically possible. They would even maybe ride along with other satellites that are used for different purposes, like spacetelescopes. Technologically possible today, too. And that's my kind of ideas. I like it.
Professor Hossenfelder
Sabine,
Can you please explain these:
1. In LHC, how do they target 2 protons hit each other right on the knee? It seems to me that proton is so small and this LHC so wide that the protons can pass each other without coliding?
2. In LHC, is the hit proton kept stationary and the other moving to hit it?
3. Do they shoot a bunch of protons at other protons or just one proton at a group of protons, or a group of protons at one proton?
4. Why don't the 2 coliding protons repel each other before impact since they are of the same charge?
5. I love your channel.
Fundamental Particle
czcams.com/video/nnkvoIHztPw/video.html