Leslie Lamport revolutionized how computers talk to each other. The Turing Award-winning computer scientist pioneered the field of distributed systems, where multiple components on different networks coordinate to achieve a common objective. (Internet searches, cloud computing and artificial intelligence all involve orchestrating legions of powerful computing machines to work together.) In the early 1980s, Lamport also created LaTeX, a document preparation system that provides sophisticated ways to typeset complex formulas and format scientific documents. In 1989, Lamport invented Paxos, a “consensus algorithm” that allows multiple computers to execute complex tasks; without it, modern computing could not exist. He’s also brought more attention to a handful of problems, giving them distinctive names like the bakery algorithm and the Byzantine Generals Problem. Lamport’s work since the 1990s has focused on “formal verification,” the use of mathematical proofs to verify the correctness of software and hardware systems. Notably, he created a “specification language” called TLA+ (for Temporal Logic of Actions), which employs the precise language of mathematics to prevent bugs and avoid design flaws.

Read more at Quanta Magazine: https://www.quantamagazine.org..../bringing-mathematic

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#computerscience #math

The field of computer science summarised. Learn more at this video's sponsor https://brilliant.org/dos

Computer science is the subject that studies what computers can do and investigates the best ways you can solve the problems of the world with them. It is a huge field overlapping pure mathematics, engineering and many other scientific disciplines. In this video I summarise as much of the subject as I can and show how the areas are related to each other.

#computer #science #domainofscience you can buy this poster here:
North America: https://store.dftba.com/produc....ts/map-of-computer-s
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A couple of notes on this video:
1. Some people have commented that I should have included computer security alongside hacking, and I completely agree, that was an oversight on my part. Apologies to all the computer security professionals, and thanks for all the hard work!
2. I also failed to mention interpreters alongside compilers in the complier section. Again, I’m kicking myself because of course this is an important concept for people to hear about. Also the layers of languages being compiled to other languages is overly convoluted, in practice it is more simple than this. I guess I should have picked one simple example.
3. NP-complete problems are possible to solve, they just become very difficult to solve very quickly as they get bigger. When I said NP-complete and then "impossible to solve", I meant that the large NP-complete problems that industry is interested in solving were thought to be practically impossible to solve.

And free downloadable versions of this and the other posters here. If you want to print them out for educational purposes please do! https://www.flickr.com/photos/95869671@N08/

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

I also write a series of children’s science books call Professor Astro Cat, these links are to the publisher, but they are available in all good bookshops around the world in 18 languages and counting:
Frontiers of Space (age 7+): http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure (age 7+): http://nobrow.net/shop/profess....or-astro-cats-atomic
Intergalactic Activity Book (age 7+): http://nobrow.net/shop/profess....or-astro-cats-interg
Solar System Book (age 3+, available in UK now, and rest of world in spring 2018): http://nobrow.net/shop/profess....or-astro-cats-solar-
Solar System App: http://www.minilabstudios.com/....apps/professor-astro
And the new Professor Astro Cat App: https://itunes.apple.com/us/ap....p/galactic-genius-wi

Find me on twitter, Instagram, and my website:
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ALL OF PHYSICS in 14 Minutes: https://youtu.be/ZAqIoDhornk

Everything is made of atoms. Chemistry is the study of how they interact, and is known to be confusing, difficult, complicated...let's learn General Chemistry in under 20 Minutes.

This is not ALL of Chemistry, as fields like "Organic Chemistry" deserve videos of their own. But, this is the foundation, or "General Chemistry", which contains most concepts you need to know to understand other topics and fields of Chemistry.

This is a summary and revision of around 4 years of Chemistry you learn in school, with maybe some university level concepts sprinkled in the mix.
This video is a good summary for preparing for exams and finals. Maybe. Perhaps.

Now go learn all of Chemistry. And share this with your friends who suck at Chemistry

Timestamps:
00:00 Intro
00:16 Valence Electrons
00:34 Periodic Table
01:24 Isotopes
01:34 Ions
01:47 How to read the Periodic Table
02:09 Molecules & Compounds
02:27 Molecular Formula & Isomers
02:53 Lewis-Dot-Structures
03:03 Why atoms bond
03:26 Covalent Bonds
03:37 Electronegativity
03:54 Ionic Bonds & Salts
04:25 Metallic Bonds
04:59 Polarity
05:37 Intermolecular Forces
05:51 Hydrogen Bonds
06:00 Van der Waals Forces
06:20 Solubility
06:46 Surfactants
07:00 Forces ranked by Strength
07:07 States of Matter
07:28 Temperature & Entropy
07:49 Melting Points
08:01 Plasma & Emission Spectrum
08:35 Mixtures
09:24 Types of Chemical Reactions
09:45 Stoichiometry & Balancing Equations
10:16 The Mole
10:46 Physical vs Chemical Change
11:05 Activation Energy & Catalysts
11:24 Reaction Energy & Enthalpy
11:42 Gibbs Free Energy
12:50 Chemical Equilibriums
13:15 Acid-Base Chemistry
13:41 Acidity, Basicity, pH & pOH
14:43 Neutralisation Reactions
14:56 Redox Reactions
15:18 Oxidation Numbers
16:01 Quantum Chemistry

Music by Audionautix.com

View full lesson: http://ed.ted.com/lessons/what....-s-the-value-of-vita

Vitamins are the building blocks that keep our bodies running; they help build muscle and bone, capture energy, heal wounds and more. But if our body doesn’t create vitamins, how do they get into our system? Ginnie Trinh Nguyen describes what vitamins are, how they get into our bodies -- and why they are so crucial.

Lesson by Ginnie Trinh Nguyen, animation by The Moving Company Animation Studio.

View full lesson: http://ed.ted.com/lessons/how-....does-caffeine-keep-u

Over 100,000 metric tons of caffeine are consumed around the world every year. That’s equivalent to the weight of 14 Eiffel Towers! Caffeine helps us feel alert, focused, and energetic, even if we haven’t had enough sleep — but it can also raise our blood pressure and make us feel anxious. So how does it keep us awake? Hanan Qasim shares the science behind the world’s most widely used drug.

Lesson by Hanan Qasim, directed by Adriatic Animation.

Check out our Patreon page: https://www.patreon.com/teded

View full lesson: http://ed.ted.com/lessons/how-....sugar-affects-the-br

When you eat something loaded with sugar, your taste buds, your gut and your brain all take notice. This activation of your reward system is not unlike how bodies process addictive substances such as alcohol or nicotine -- an overload of sugar spikes dopamine levels and leaves you craving more. Nicole Avena explains why sweets and treats should be enjoyed in moderation.

Lesson by Nicole Avena, animation by STK Films.

When it comes to what you bite, chew and swallow, your choices have a direct and long-lasting effect on the most powerful organ in your body: your brain. So which foods cause you to feel so tired after lunch? Or so restless at night? Mia Nacamulli takes you into the brain to find out. Lesson by Mia Nacamulli, animation by Private Island.

Having had a good enough parent is a vital component of mental health in adulthood. But what really is a good enough parent? How can one tell if one had one or not? This film guides us as to what might have gone very right - and sometimes very wrong - in our childhoods.
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FURTHER READING

You can read more on this and other subjects on our blog, here: https://bit.ly/2ZP0L45

"Strangely, and rather awkwardly, it seems no human being can ever really grow up sane unless it has been loved very deeply by someone for a number of years in its early life. But we’re still learning what parental love might actually involve. The word ‘love’ trips lightly off the tongue and few parents – even the most disagreeable ones – would ever resist a claim that they felt the emotion deeply, but that doesn’t mean that loving behaviour is any easier to understand in theory or practice in reality… "

MORE SCHOOL OF LIFE


Watch more films on SELF in our playlist:
http://bit.ly/TSOLself

You can submit translations and transcripts on all of our videos here: https://www.youtube.com/timedtext_cs_panel?c=UC7IcJI8PUf5Z3zKxnZvTBog&tab=2
Find out how more here: https://support.google.com/you....tube/answer/6054623?


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CREDITS

Produced in collaboration with:

Natalia Biegaj
https://www.nb-animation.com/

Title animation produced in collaboration with

Vale Productions
https://www.valeproductions.co.uk/

We all are, at times, the victims of one of the cruellest and most remorseless of all mental afflictions: obsessive thinking. But why?

FURTHER READING

You can read more on this and other subjects here: https://9qq0.short.gy/m0b8dK

“For some of us, today like every day, will mean another case of immersing ourselves, from the moment we wake up, in a by-now very familiar set of painful thoughts. We will dwell – once again – on how awful we look and more particularly, on how our nose is repulsively proportioned relative to the rest of our face. We will think – once again – of a website we inadvertently visited twelve years ago and how the police might be preparing to close in on, and arrest, us. We will think – once again – of how several of our neighbours (especially the people upstairs) might be colluding to ruin and disgrace us. Or we will think – once again – of something we said to a colleague which we fear they misconstrued and which may well lead them to seek disciplinary action against us at any moment…”

MORE SCHOOL OF LIFE

Watch more films on SELF in our playlist:
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CREDITS

Produced in collaboration with:

Natalia Biegaj
https://nb-animation.com/

Title animation produced in collaboration with

Graeme Probert
www.gpmotion.co.uk

Aristotle was the master of virtues.

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“Aristotle was born around 384 BC in the ancient Greek kingdom of Macedonia, where his father was the royal doctor. He grew up to be arguably the most influential philosopher ever, with modest nicknames like ‘the master’, and simply ‘the philosopher’. One of his big jobs was tutoring Alexander the Great, who soon after went out and conquered the known world...”

MORE SCHOOL OF LIFE

Watch more films on PHILOSOPHY in our playlist:
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CREDITS

Produced in collaboration with:

Mad Adam
http://www.madadamfilms.co.uk #theschooloflife

The greatest problem of the modern education system is that it doesn't focus on systematically preparing students for many aspects of the real challenge out there: Life itself.

Enjoying our Youtube videos? Get full access to all our audio content, videos, and thousands of thought-provoking articles, conversation cards and more with The School of Life Subscription: https://t.ly/oIIpf

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CREDITS

Brought to you by http://www.theschooloflife.com

Produced in collaboration with
http://www.anthousestudio.com #theschooloflife

Adding Fractions?
Subtracting Fractions?
Multiplying Fractions?
Dividing Fractions?
Mixed Numbers?
Simplifying Fractions?

It's all here.

To support tecmath on Patreon: https://www.patreon.com/tecmath
It really helps and is appreciated!

Basically a full day AI course crammed into 18 mins of drawing & talking. Target audience: Everyone.

Covers questions like What is generative AI, how does it work, how do I use it, what are some of the risks & limitations. Also covers things like autonomous agents, the role of us humans, prompt engineering tips, AI-powered product development, origin of ChatGPT, different types of models, and some tips about mindset around this whole thing.

Here is the full drawing:
https://blog.crisp.se/wp-conte....nt/uploads/2024/01/g

Voice translations:
- German: https://www.youtube.com/watch?v=Dgu5utapmk0
- Ukrainian: https://www.youtube.com/watch?v=rUqIzty9hkM

Would you like to make a voice translation? ElevenLabs can do really voice translation which even sounds like me :)
You can also do a manual dub with your own voice if you prefer. Whatever works best.
1. Check out https://elevenlabs.io/docs/dubbing/studio
2. Make the video & upload it to youtube or somewhere.
3. Make sure the description shows that this is an AI translation, and include a link to the original video.
4. Send a link to me (for example via a comment) and I'll add it above.

If you have practical questions you can ask Stefan Kirschnick, he made the German dub. https://www.linkedin.com/in/stefankirschnick/

These 27 facts will blow your mind!Credits: https://www.buzzfeed.com/bfmp/videos/63948Check out more awesome videos at BuzzFeedVideo!https://bit.ly/YTbuzzfeedvideoGET MORE BUZZFEED:https://www.buzzfeed.comhttps:....//www.buzzfeed.com/v flagship channel. Sometimes funny, sometimes serious, always shareable. New videos posted daily!To see behind-the-scenes & more, follow us on Instagram @buzzfeedvideo http://bit.ly/2JRRkKULove BuzzFeed? Get the merch! BUY NOW: https://goo.gl/gQKF8m

An inside look at the basic systems that make up a standard car engine.

Alternate languages:
Español: https://www.youtube.com/watch?v=FpLfFcfgtzE

Get on Patreon and help fund my 3D animation obsession! It wouldn't feel right to put sponsorship segments in the middle of high quality educational content, so let's try another way together:
https://www.patreon.com/animagraffs

Need 3D illustration and animation? Have suggestions for what to explain next? Animagraffs can help! Let's chat: https://animagraffs.com/contact/

License Animagraffs work for your own purposes
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See more explanations of how things work at: https://animagraffs.com/

I use Blender 3D to create these models. It's free and open source, and the community is amazing:
https://www.blender.org/

Chapters
0:00 Intro
0:14 4 Stroke Cycle
1:22 Firing Order
1:36 Camshaft / Timing Belt
1:56 Crankshaft
2:15 Block / Heads
2:35 V6 / V8
3:02 Air Intake
3:25 Fuel
3:54 Cooling
5:02 Electrical
6:06 Oil
7:03 Exhaust
7:28 Full Model

💥All in One Cheat Sheet Bundle → https://accountingstuff.com/shop

A collection of Accounting tutorials that I have put together over the past three years. I have arranged the topics into a logical, progressive order and removed all commercials, intros & outros for your viewing pleasure!

⏱️TIMESTAMPS
00:00 - Intro
00:58 - The Accounting Cycle - https://youtu.be/yYX4bvQSqbo
14:54 - The Accounting Equation - https://youtu.be/56xscQ4viWE
18:29 - Debits & Credits - https://youtu.be/VhwZ9t2b3Zk
23:27 - Why Debits & Credits Aren't Backwards - https://youtu.be/ddb65RudGi0
25:09 - T-Accounts - https://youtu.be/kA9snSvCgW8
34:35 - Journal Entries - https://youtu.be/Y-_Q3rANyxU
39:55 - What is an Invoice? - https://youtu.be/O6qtAT_SnIM
45:38 - What are Assets? - https://youtu.be/rOsuqG_J0t4
54:08 - What are Liabilities? - https://youtu.be/fKRwT10Sszc
01:03:45 - What is Equity? - https://youtu.be/Fr5oHEYrT2A
01:13:20 - The Cash Method of Accounting - https://youtu.be/8t9PFHlLLVI
01:17:49 - The Accrual Method of Accounting - https://youtu.be/C8UuX75ZarU
01:24:00 - Revenue Recognition Principle - https://youtu.be/37PPccwsYJI
01:25:53 - Inventory & Cost of Goods Sold - https://youtu.be/OB6RDzqvNbk
01:35:07 - My #1 Accounting Hack - https://youtu.be/5Y3wjH-6gHk
01:38:07 - Debits & Credits Practice Questions - https://youtu.be/yCOZ7aylC0c
01:43:23 - The General Ledger - https://youtu.be/Fu8zGee1SZw
01:52:25 - The Trial Balance - https://youtu.be/3_PfoTzSCQE
01:59:05 - Adjusting Entries - https://youtu.be/H0N7tvXuJlU
02:08:03 - Prepaid Expenses - https://youtu.be/RE7wrflFOGA
02:16:26 - Deferred Revenue - https://youtu.be/F1zNQ1wga7o
02:25:29 - Accrued Expenses - https://youtu.be/9aZ6CCj-ies
02:37:03 - Accrued Revenue - https://youtu.be/7ibN25VCvFg
02:44:50 - Depreciation - https://youtu.be/_pas1ETbrj8
02:55:51 - Straight Line Method of Depreciation - https://youtu.be/iruD9KTNnNc
03:02:28 - Income Statement - https://youtu.be/hrSUq4wcd0g
03:12:16 - How to Make an Income Statement - https://youtu.be/0--AvwZabIQ
03:17:04 - Balance Sheet - https://youtu.be/YZyBSU6YdmM
03:27:04 - How to Make a Balance Sheet - https://youtu.be/CMv1zlZhb4Q
03:33:51 - Trial Balance vs Balance Sheet - https://youtu.be/q7Nhj8vDD8M
03:39:20 - Intro to Cash Flow Statements - https://youtu.be/Xy-yDw0gsgc
03:49:24 - Direct Method Cash Flow Statement - https://youtu.be/KOR10VPsyO8
04:06:43 - Indirect Method Cash Flow Statement - https://youtu.be/8CH-6wdfz0Y
04:16:07 - How to Make a Cash Flow Statement - https://youtu.be/DiVPAjgmnj0
04:31:07 - The Key to Understanding Financial Statements - https://youtu.be/_F6a0ddbjtI
04:37:09 - Closing Entries - https://youtu.be/e1z2lpdQyGQ
04:50:22 - Outro

🔴Subscribe for more Accounting Tutorials → https://geni.us/subtothechannel

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🔎FAQ
▪ My Favourite Accounting Book for Beginners → http://geni.us/5mKR7m

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🎬LEARN ACCOUNTING BASICS FOR FREE
▪ The Full Playlist → https://www.youtube.com/playli....st?list=PL5zKSeS09l3

🎵MUSIC
▪ Lakey Inspired - Blue Boi → https://soundcloud.com/lakeyinspired/blue-boi
▪ Lakey Inspired - Last Night → https://soundcloud.com/lakeyinspired
________________________
DISCLAIMER

Some of the links above are affiliate links, where I earn a small commission if you click on the link and purchase an item. You are not obligated to do so, but it does help fund these videos in hopes of bringing value to you!
________________________

#accounting #accountingstuff #accountingbasics

💥Accounting Cycle Cheat Sheet → https://accountingstuff.com/shop
🖊Accounting Practice Questions → https://accountingstuff.com/practice-questions

Would you like to know what Accounting REALLY MEANS? In this short tutorial we'll take 1 simple example and follow it through all 8 Steps of the Accounting Cycle - from start to finish - you'll build a solid understanding of all the Accounting Basics we encounter along the way. Stuff like the Accounting Equation, Debits & Credits, Double-Entry Accounting, T-Accounts, the Trial Balance etc.

If you're an Accounting Beginner, then I recommend watching this all the way through to the end - at least once - to get a complete picture of how Accounting works. Afterwards, you can jump into my Accounting Basics Playlist (see below) and explore every topic in more detail.

🎬LEARN ACCOUNTING BASICS FOR FREE
▪ The Full Playlist → https://www.youtube.com/playli....st?list=PL5zKSeS09l3
▪ Equity Video → https://youtu.be/Fr5oHEYrT2A

🔴Subscribe for more Accounting Tutorials → https://geni.us/subtothechannel

⏱️TIMESTAMPS
00:00 - Intro
00:16 - What is Financial Accounting?
01:11 - STEP 1: IDENTIFY TRANSACTIONS
01:29 - STEP 2: PREPARE JOURNAL ENTRIES
01:32 - What is a Journal Entry?
01:36 - What does a Journal Entry look like?
02:05 - What is Double Entry Accounting?
02:58 - What is the Accounting Equation?
04:17 - STEP 3: POST TO GENERAL LEDGER
04:22 - What is the General Ledger?
04:43 - Posting to Accounts
04:49 - What is an Account?
04:58 - The 6 Types of Account - Assets, Liabilities, Equity, Revenue, Expenses & Dividends
05:21 - What are T-Accounts?
06:00 - What does the General Ledger look like?
06:18 - STEP 4: UNADJUSTED TRIAL BALANCE
06:22 - What is a Trial Balance?
06:43 - How to build a Trial Balance
07:10 - Why is it called Trial Balance?
07:28 - STEP 5: POST ADJUSTING ENTRIES
07:32 - What are Adjusting Entries?
07:40 - IFRS vs GAAP
08:21 - What is the Accrual Method of Accounting?
08:41 - Adjusting Entries Example
10:14 - STEP 6: ADJUSTED TRIAL BALANCE
10:41 - STEP 7: CREATE FINANCIAL STATEMENTS
10:44 - What are Financial Statements?
10:59 - What are the three types of Financial Statements?
11:10 - What is the Balance Sheet?
11:28 - What is the Income Statement?
11:43 - Profit vs Cash Flow
11:54 - What is the Cash Flow Statement?
12:04 - Who would use Financial Statements?
12:34 - STEP 8: POST CLOSING ENTRIES
12:41 - What are Closing Entries?
12:51 - Closing Entries Example
13:10 - Post Closing Trial Balance
13:20 - THE ACCOUNTING CYCLE

🔎FAQ
▪ My Favourite Accounting Book for Beginners → http://geni.us/5mKR7m

🔝 CLOUD ACCOUNTING SOFTWARE
▪ QuickBooks Online USA (FREE TRIAL/DISCOUNT) → http://geni.us/jA9N
▪ QuickBooks Online Canada (FREE TRIAL/DISCOUNT) → https://geni.us/bNN7
▪ Xero (FREE TRIAL) → https://xeroamericas.grsm.io/ck90eoq1r6tu

🚶FOLLOW ME ON
▪ Instagram → https://www.instagram.com/accountingstuff
▪ TikTok → https://www.tiktok.com/@accounting_stuff
▪ Facebook → https://www.facebook.com/thisisaccountingstuff/

________________________
DISCLAIMER

Some of the links above are affiliate links, where I earn a small commission if you click on the link and purchase an item. You are not obligated to do so, but it does help fund these videos in hopes of bringing value to you!
________________________

#accounting #accountingbasics #accountingstuff

📚 Start a business using case studies: https://www.starterstory.com/?utm_source=youtube&utm_campaign=hush&yts=true

📩 Business Ideas Newsletter - https://www.starterstory.com/newsletter

In this video, I flew out to Toronto to get the full story of Hush Blankets. Aaron and Leor started this business while working their 9-5's, and they made one of the craziest rebounds I've ever seen from an ecommerce business - the best part, Aaron shared exactly how they did it.

Follow Aaron
📸 Instagram - https://www.instagram.com/aaron.spivak/

Our Links
🔔 Subscribe - https://www.youtube.com/@starterstory
📸 Instagram - https://www.instagram.com/starter_story/
🐦 Twitter - https://twitter.com/thepatwalls

Scientists like Prof Sinclair have evidence of speeding up, slowing, and even reversing aging.
Thanks to LastPass for sponsoring this video. Click here to start using LastPass: https://ve42.co/VeLP

What causes aging? According to Professor David Sinclair, it is a loss of information in our epigenome, the system of proteins like histones and chemical markers like methylation that turn on and off genes. Epigenetics allow different cell types to perform their specific functions - they are what differentiate a brain cell from a skin cell. Our DNA is constantly getting broken, by cosmic rays, UV radiation, free radicals, x-rays and regular cell division etc. When our cells repair that damage, the epigenome is not perfectly reset. And hence over time, noise accumulates in our epigenome. Our cells no longer perform their functions well.

To counter this decline, we can activate the body's own defenses against aging by stressing the body. Eat less, eat less protein, engage in intense exercise, experience uncomfortable cold. When the body senses existential threats it triggers longevity genes, which attempt to maintain the body to ensure its survival until good times return. This may be the evolutionary legacy of early bacteria, which established these two modes of living (repair and protect vs grow and reproduce). Scientists are uncovering ways to mimic stresses on the body without the discomfort of fasting. Molecules like NMN also trigger sirtuins to monitor and repair the epigenome. This may slow aging.

Reversing aging requires an epigenetic reset, which may be possible using Yamanaka factors. These four factors can revert an adult cell into a pluripotent stem cell. Prof. Sinclair used three of the four factors to reverse aging in the retinal cells of old mice. He found they could see again after the treatment.

Special thanks to:
Professor David Sinclair, check out his book "Lifespan: Why We Age & Why We Don't Have To"
Assistant Professor David Gold
Noemie Sierra (for polyp images)
Genepool Productions for telomere animations from Immortal: https://ve42.co/immortal
Epigenetics animations (DNA, histones, methylation etc) courtesy of: http://wehi.tv
Animation: Etsuko Uno
Art and Technical Direction: Drew Berry
Sound Design: Francois Tetaz & Emma Bortignon
Scientific Consultation: Marnie Blewitt
Courtesy of Walter and Eliza Hall Institute of Medical Research

Filming, editing and animation by Jonny Hyman and Derek Muller

Music from https://epidemicsound.com "Clearer Views" "Innovations" "A Sound Foundation" "Seaweed"
Additional music by Kevin MacLeod from https://incompetech.com "Marty Gots a Plan"

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