Q&A : DOES TIME EXIST ? - ANDREW ZIMMERMAN JONES

DOES TIME EXIST? - ANDREW ZIMMERMAN JONES

4,399,447 views

•Oct 23, 2018

TED-Ed

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The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars. More precise time-keeping eventually came along to put time in more convenient boxes. But what exactly are we measuring? Andrew Zimmerman Jones contemplates whether time is something that physically exists or is just in our heads. Lesson by Andrew Zimmerman Jones, directed by Nice Shoes. Thank you so much to our patrons for your support! Without you this video would not be possible! Chung Wah Gnapp, Andrew Sprott, Jane White, Ayan Doss, BRENDAN NEALE, Lawrence Teh Swee Kiang, Alex Pierce, Nick Cozby, Jeffrey Segrest, Anthony Arcis, Ugur Doga Sezgin, Kathryn Vacha, Allyson Martin, Srinivasa C Pasumarthi, 张晓雨, Ann Marie Reus, Nishant Suneja, Javier Lara Rosado, Jerry Yang, Shubham Arora, Sebastian Regez, Danielle Downs, Clovis Norroy, Liz Candee, Vinh-Thuy Nguyen, Amy Lopez, SANG HAN, Aries SW, Sebastiaan Hols, Grimes Gregory, João Henrique Rodrigues, Michael Lucke, Annastasshia Ames, Claudia Hernandez Chavarria, Livia-Alexandra Sarban, Lee, Karthik Balsubramanian, Mathew Samuel, Turine Tran, Ido brown, Jordan Tang, Christopher Jimenez, Juan, Tracey Tobkin, Sid, emily lam, Kathryn J Hammond, Elliot Poulin, Noel Situ and Latora Slydell.

 

 

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LOOKING BACK : THE BREAKUP OF YUGOSLAVIA EXPLAINED

THE BREAKUP OF YUGOSLAVIA EXPLAINED

269,683 views

•Aug 23, 2020

HISTORY SCOPE

170K subscribers

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The Breakup of Yugoslavia. The poll: https://www.youtube.com/post/UgwTlVb3... Patreon: https://www.patreon.com/Historyscope

Social Media Discord: https://discord.gg/6FhkySE

Reddit: https://www.reddit.com/r/HistoryScope/

Twitter: https://twitter.com/ScopeHistory

Instagram: https://www.instagram.com/officialhis...

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My music playlist while animating: https://www.youtube.com/playlist?list... SOURCES: - https://www.britannica.com/place/King...

- https://www.britannica.com/place/Yugo...

- http://www.yuhistorija.com/doc/LP%20-...

- https://www.infoplease.com/history/wo...

(very short and simple timeline of events) - http://data.un.org/Data.aspx?q=gdp+pe...

- https://doc-research.org/2018/03/rise...

[BEST ONE] - https://www.imf.org/external/np/loi/2...

[HAS LOTS OF DETAILED FIGURES] - https://www.icty.org

- https://www.imf.org/external/np/loi/2...

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AMAZING FACTS : JAPANESE RAILWAY

RAILWAY TECHNOLOGY IN JAPAN

74 views

•Oct 15, 2020

OVU VIDEOS

24 subscribers

 

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FUTUROLOGY : THE WORLD IN 2030 - DR. MICHIO KAKU

"THE WORLD IN 2030" BY DR. MICHIO KAKU

6,151,160 views

•Dec 15, 2009

CUNYQueensborough

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"The World in 2030: How Science will Affect Computers, Medicine, Jobs, Our Lifestyles and the Wealth of our Nations" Wednesday, October 28, 2009 Dr. Michio Kaku is a theoretical physicist and the Henry Semat Professor at the City College of New York and the Graduate Center of the City University of New York, where he has taught for more than 30 years. He is a graduate of Harvard University in Cambridge, Massachusetts, and earned his doctorate from the University of California at Berkeley. Dr. Kaku is one of the founders of string field theory, a field of research within string theory. String theory seeks to provide a unified description for all matter and the fundamental forces of the universe. His book The Physics of the Impossible addresses how science fiction technology may become possible in the future. His other books include Hyperspace: A Scientific Odyssey Through Parallel Universes, Time Warps, and the Tenth Dimension , selected as one of the best science books of 1994 by both the New York Times and The Washington Post, and Parallel Worlds: A Journey Through Creation, Higher Dimensions, and the Future of the Cosmos , a finalist for the Samuel Johnson Prize.

 

 

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ENVIRONMENT : HOW A FARMER TURNED 90 ACRES OF WASTELAND INTO A LUSH GREEN FOREST

HOW A FARMER TURNED 90 ACRES OF WASTELAND INTO

A LUSH GREEN FOREST IN ODISHA

1,099,721 views

•Dec 17, 2018

DOWN TO EARTH

240K subscribers

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#Forest #Organicfarming #Climateresilient In 1988, SABARMATEE AND HER FATHER RADHAMOHAN bought an acre of degraded land in Nayagarh district of Odisha. They wanted to set up an experiment to see if a forest using organic techniques. Organic farming was not widespread in India at that time, therefore they had to rely on trial and error. But over time their efforts succeeded and after nearly three decades their one acre has grown to 90 acres and with a lush forest cover. In 1989 the duo registered a NGO called Sambhav, which would work on organic farming and ecological conservation. Within their forest is also a 2.5 acre plot which is used for seed preservation. Over the year they have managed to collect, grow and preserve nearly 800 varieties of traditional seeds. More than half of these seeds are of paddy that can grow under different climatic systems and under different stress levels. Some of their seed can tolerate water logging and heavy rain while the other varieties can tolerate drought. There are also certain varieties that are highly nutritious. Sabarmatee's efforts have built up an important repository of seeds that can help alleviate the effects of climate change. When Odisha was hit by cyclonic storms in 2013 and 2014, 34 varieties of rice managed to withstand the damage.

 

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TECH WATCH : FIVE NEW BATTERY TECHNOLOGIES THAT COULD CHANGE EVERYTHING

FIVE NEW BATTERY TECHNOLOGIES THAT 

COULD CHANGE EVERYTHING

1,415,029 views

•Sep 27, 2020

Electric Future

124K subscribers

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Batteries are everywhere in today’s hyperconnected electrically propelled society. Sign up https://brilliant.org/ElectricFuture/

First 200 people get 20% off annual premium subscription. Thanks to Brilliant for sponsoring this video! What if your electric car could travel 1000 miles on a single charge, charge in 10 minutes, and last for 1 million miles? Today just about every electric car uses lithium ion batteries. They’re pretty good, but ultimately are heavy and have long charging times for the amount of energy they can store. According to Elon Musk, battery modules are the main limiting factor in electric vehicle life. In 2019 he said the Tesla Model 3 drive unit is rated for 1 million miles, but the battery isn’t as long lasting. To handle the predicted demand explosion for electric vehicles over the coming decades, we’ll need to create a breakthrough battery that is cheaper, longer lasting, more durable, and more efficient. We must also address the issues of political and environmental sustainability to ensure batteries remain tenable in an increasingly electric future. Over 80% of world’s lithium deposits are found in China, and current technology also relies heavily on cobalt, an element mostly found in the Democratic Republic of Congo. After Tesla’s recent battery day, where Elon Musk announced a larger, tabless 4680 battery cell with improved energy density, greater ease of manufacturing, and lower cost. The world’s attention is now more focused on batteries than ever before, but Tesla isn’t the only show in town. Lithium air batteries. Metal air batteries have been around for a while. You might find a little zinc air button cell in a hearing aid, for example, but scaled up aluminum and lithium air chemistries are also promising for the automotive and aerospace industries. The potential for lightweight batteries with high energy storage makes this battery technology promising. Lithium air batteries could have a maximum theoretical specific energy of 3,460 W h/kg , almost 10 times more than lithium ion. NASA researchers have also been investigating lithium air batteries for use in aircraft. This technology still has a long way to go before your take your next business trip is in an electric plane. Nanotech Batteries. Nanotechnology has been a buzzword for several decades, but is now finding applications in everything from nanoelectronics to biomedical engineering, and body armor to extra-slippery clothing irons. Nanomaterials make use of particles and structures 1-100 nanometers in size, essentially one size up from the molecular scale. Carbon nanostructures also show great promise. Graphene is one of the most exciting of these. Amprius go one stage further with their anodes of ‘100% silicon nanowire’. The maker claims that they can achieve 500 Wh/kg which is in the range suitable for enabling electric aircraft in partnership with Airbus. Nanomaterial research is promising Lithium sulphur batteries are one emerging technology that can offer greatly improved energy densities compared to lithium-ion. The theoretical maximum specific energy of this chemistry is 2,567 Wh/kg compared to lithium ion’s 350 Wh/kg maximum. Solid state electrolytes. A common theme in emerging technologies so far has been researchers’ desire to develop solid state electrolytes. These would replace flammable organic liquids with stable, crystalline or glassy-state solids, or polymer-base. It is hoped that using these solid electrolytes would enable the use of metallic lithium electrodes to provide higher output voltages and allow for increased energy density. Panasonic have also been looking into solid state electrolytes. It is notable that Tesla have been partnered with Panasonic in their existing lithium-ion manufacturing capacity, but it is Toyota who have publicly announced their collaboration with Panasonic to develop next generation solid state batteries. Samsung too are working on solid state batteries. Dual carbon batteries. Two carbon electrodes and a non-toxic electrolyte with the ability to extract more power than from conventional lithium ion, and their ability to charge 20 times faster, and these lithium-ion variants could be the future for electric vehicles. Better batteries are also important for the advancement of stationary storage from renewable energy sources such as solar power. Tesla is also making headway into this sector, with products like the powerwall home battery, and powerpack commercial energy storage products. The technologies discussed in this video could have huge implications on different battery powered transportation options besides just electric cars. Imagine the potential in everything from electric bikes to electric scooters and electric boats to electric airplanes. Consumer electronics also stand to experience vast improvements in battery life in devices such as smart phones, laptops, cameras, and more. The future is electric!

 

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USEFUL TIPS : 5 Cell Phone Tricks

*Very Informative Technique:*

*👋5 Cell Phone Tricks! 👻*

1. *Emergency Services:* 

_If you find yourself out of the coverage area of your mobile network and there is an emergency, just dial 112 and your mobile will establish your contact with any existing network in that area! Surprisingly, the emergency number 112 can be dialed even if the keypad is locked!_ 

_*This works on all phones worldwide and is free, too!!*_

2. *Locked Your Keys In The Car:*

_If you lock your remote keyless car keys in the car and the spare keys are at home, call someone at home on their mobile phone from your cell phone. Hold your cell phone about a foot from your car door and have the person at your home press the unlock button on the spare key, holding it near the mobile phone on his/ her end. Your car will unlock, even if you are thousands of miles away!!_

3. *In Case of Mobile Phone Battery Flat:*

 _All cell phones have Hidden Battery Power._

_To activate, press the keys *3370# (remember the asterisk). Do this when the phone is almost dead. Your mobile will restart in a special way with this new reserve and it will show a 50% increase in battery life. This reserve will be recharged when you charge your handphone next time. This secret is in the fine print in most phone manuals, which we often skip without realizing!_

4. *Disabling A STOLEN Mobile:*

_To check your mobile phone's serial number, key in following digits on your phone: *#06#. A 15 digits code will appear on the screen that is unique to your handset_.  _Write it down and keep it somewhere safe._    _If your handphone is ever stolen, phone your service provider and give them this code._ _They will then be able to block your handset so even if the SIM is changed, your handphone will be totally useless_. _Maybe you don't get your phone back but it can't be used/ resold either._ 

_This secret is in the fine print of most mobile phone manuals_. _It was created for the very purpose of trying to prevent phones from being stolen._ 

5. *ATM PIN Number Reversal:*

_If you ever be forced by a robber to withdraw money from an ATM machine, you can notify the police by entering your PIN # in reverse order. For example, if your PIN Number is 1234 but you should instead put 4321. The ATM system recognizes that your PIN # is backwards from the ATM card you placed in the machine. The machine will still give you the money you requested for but unknown to the robber, the police will be immediately dispatched to the location. Beware all ATM’s carry this emergency sequencer by law. It is, however, seldomly used as people just don't know about it!!_ ⚠

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