How serious is antibiotic resistance, what causes it, and what are scientists doing to fight it? In this video I talk about some of the most promising recent developments to develop new antibiotics and fight bacteria.
0:00 Intro 0:48 What are antibiotics and how do they work? 2:43 What causes antibiotic resistance and how bad is it? 6:50 What are scientists doing? 13:33 Sponsor message
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The paper is here
http://arxiv.org/abs/1503.07331
My summary is here
https://medium.com/starts-with-a-bang/could-black-holes-destroy-the-universe-de8a3135856f
I mentioned these articles
http://www.nytimes.com/2008/04/15/science/15risk.html?_r=0
http://content.time.com/time/health/article/0,8599,1838947,00.html
I used these videos in the back
https://www.youtube.com/watch?v=X6nBEzq6viM
https://www.youtube.com/watch?v=4wv8Mi-Jl3E
https://www.youtube.com/watch?v=xcMmiKnbFyY
https://www.youtube.com/watch?v=mn3Egf59F8c
https://www.youtube.com/watch?v=qboyIcLS0Wo
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Einstein's theory of General Relativity tells us that gravity is caused by the curvature of space and time. It is a remarkable theory that has been confirmed by countless observations, such as gravitational lensing, light deflection on the sun, redshift in the gravitational potential, black holes and their shadows, and gravitational waves.
However, we already know that General Relativity cannot be quite right because it does not fit together with another well-confirmed theory that is quantum mechanics. To resolve this tension, physicists think that we need a theory of quantum gravity.
In this video I explain the three key reasons why physicists think that we need a theory of quantum gravity.
Support me on Patreon: https://www.patreon.com/Sabine
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Use this link to make use of our special offer for Curiosity Stream: https://curiositystream.com/Sabine
Does the universe cycle through eons, in which an infinite sequence of big bangs happen? How does Roger Penrose's conformal rescaling work and what does it have to do with entropy increase? I go through this in today's video.
You can support us on Patreon: https://www.patreon.com/Sabine
The paper I talk about at 7 mins 3 seconds about rings in the CMB is this:
https://link.springer.com/article/10.1140/epjp/i2013-13022-4
The paper about Hawking Points that I mention at 7 mins 28 seconds is this:
https://arxiv.org/abs/1808.01740
The re-evaluation of Hawking Points in the CMB that I talk about at 7 mins 55 seconds is here:
https://iopscience.iop.org/article/10.1088/1475-7516/2020/03/021
The paper about the past incompleteness of Steinhardt's cyclic cosmology which I refer to at 11 mins 20 seconds is here:
https://arxiv.org/abs/2110.15380
0:00 Introduction
0:51 What is Conformal Cyclic Cosmology?
3:01 What is CCC good for?
5:00 What's with the physics?
9:25 What do I think about it?
12:20 Sponsor message
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Check out Brian Keating's channel: https://www.youtube.com/channel/UCmXH_moPhfkqCk6S3b9RWuw
I was asked to write an article addressing the question whether some research in physics has become too speculative. I did as I was asked, and all seemed fine, until someone on the editorial board of the magazine decided that physicists would be too upset about what I wrote.
The exact text of my opinion piece was too long to copy it here, so I put it up on my blog:
http://backreaction.blogspot.com/2021/07/can-physics-be-too-speculative.html
You can support me on Patreon: https://www.patreon.com/Sabine
0:00 Intro
1:05 Progressive of Degenerative?
3:23 Dark Matter
4:39 Fifth Forces
5:17 String Theory
6:22 Multiverses
6:55 Alien Technology
8:56 Sponsor Message
#physics #science
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Check out the math & physics courses that I mentioned (many of which are free!) and support this channel by going to https://brilliant.org/Sabine/ where you can create your Brilliant account. The first 200 will get 20% off the annual premium subscription.
20 years ago the LSND experiment at Los Alamos detected a strange anomaly in neutrino oscillations. In 2018 the Fermilab experiment MiniBooNE that was checking on this observation saw it too. The anomaly is above the discovery threshold. What does this mean for the standard model of particle physics?
Correction to what I say at 1 mins 55 seconds: "lepton" should have been "charged lepton" (in both instances).
Correction to what I say at 3 mins 33 seconds: It was the Nobel Prize for Physics in 2015 (as you see on the screenshot) not (as I mistakenly said) in 2011.
You can support us on Patreon: https://www.patreon.com/Sabine
0:00 Intro
1:34 Reasons to like neutrinos
6:00 The LSND and MiniBooNe anomaly
8:45 What does it mean?
10:53 Sponsor Message
DO NOT TIP. This is an unofficial YouTube mirror of Sabine Hossenfelder (https://youtu.be/tKK2B6OMojU). If you want to tip Sabine Hossenfelder please visit https://www.patreon.com/Sabine.
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NordVPN special deal: Just go to https://nordvpn.com/sabine and use our coupon code sabine at checkout.
Can one blast apart a hurricane with a nuclear bomb? Can one make a hurricane rain off over the oceans? Can one stop hurricanes from happening in the first place? How do hurricanes form anyway and what's the difference between a hurricane and a typhoon? That's what I explain in this video.
You can support us on Patreon: https://www.patreon.com/Sabine
A handy estimate for the power of hurricanes can be found here:
http://texmex.mit.edu/pub/emanuel/PAPERS/hurrpower.pdf
The paper mentioned at 7 mins 50 seconds is this:
Simulation of hurricane response to suppression of warm rain by sub-micron aerosols
D. Rosenfeld, A. Khain, B. Lynn, and W. L. Woodley
Atmos. Chem. Phys., 7, 3411–3424 (2007)
https://acp.copernicus.org/articles/7/3411/2007/
#science #education #hurricanes
0:00 Intro
0:44 Nuking Hurricanes
6:22 Seeding Hurricanes
8:12 Spraying Hurricanes
8:35 Oiling Hurricanes
9:03 Cooling Hurricanes
10:05 Diverting Hurricanes
10:26 Preventing Hurricanes
11:32 Sponsor Message
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Interview with Prof Tim Palmer from the University of Oxford.
A recent opinion piece in the New York Times argued that scientists got climate change wrong
https://www.nytimes.com/2019/11/08/opinion/sunday/science-climate-change.html
But did they really?
In this video we speak about the uncertainty of climate predictions, tipping points, what we know, what we do not know about the trends, and what policy consequences to draw from that.
The mentioned article in the Guardian is here:
https://www.theguardian.com/commentisfree/2019/oct/25/the-real-reason-some-scientists-downplay-the-risks-of-climate-change
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Don't ask me about the chord progress. Halfway through I noticed there's no F in D major...
Lyrics:
Verse 1
He likes to fight
And he fights
With a smile
While he finds
Weakness in my eye
He likes to hide
Behind a wall of fire
He's a player
He likes to play
Chorus:
He likes the game
He likes the fight
He likes the pain
That's when he feels alive
Verse 2:
He likes to win
And he wins
Sticks and Stone
Builds a home
But words cannot disturb him
He likes the darkness
The absence of light
That's when it started
That's when he
Feels alive
Repeat Chorus
Download mp3 here:
http://prime-spot.de/fire57.mp3
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(previous version had the strings missing)
Ave Maria
I hope that my prayer finds you well
I don’t believe in gods and angels
I don’t believe in heaven or hell
But in case I thought it was useful to pray
Here is what I would say
Everyone blames everyone for cheating
And I don’t know what is wrong and what true
Our democracy is falling to pieces
And no one has a clue what to do
Ave Maria
I hope that my prayer finds you well
Some time has passed since we last saw you
Some time has passed since you were here
Today I’m calling to say that I fear
We have lost our way
The last two thousand years have not been easy
But now it seems we have buried all our dreams
So if anyone is out there and can hear me
We could really need some help down here
Audio on soundcloud here: https://soundcloud.com/sabine-hossenfelder/ave-maria-atheists-version-1