Espero Que le guste esta canción de Jaci Velasquez de la producción Mi Corazón

Well, it wouldn't be too long after we started developing Ecology that we would try to control the environment. In some ways this was helpful and likely prevented a lot of people from starving. But, there have been a few downsides.


***

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Eric Prestemon, Sam Buck, Mark Brouwer, Bob Doye, Jennifer Killen, Naman Goel, Nathan Catchings, Brandon Westmoreland, dorsey, Indika Siriwardena, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Glenn Elliott, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Brian Thomas Gossett, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Malcolm Callis, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
--

Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse

CC Kids: http://www.youtube.com/crashcoursekids

A last round of laughs from the set of Crash Course Games!

Want more Crash Course in person? We'll be at NerdCon: Nerdfighteria in Boston on February 25th and 26th! For more information, go to http://www.nerdconnerdfighteria.com/

Want some Crash Course Games merch? Check out our History of Consoles poster and Snake-inspired mug!
https://store.dftba.com/collections/crashcourse

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Mark, Les Aker, Robert Kunz, William McGraw, Jeffrey Thompson, Jason A Saslow, Rizwan Kassim, Eric Prestemon, Steve Marshall, Advait Shinde, Rachel Bright, Kyle Anderson, Ian Dundore, Tim Curwick, Ken D. Sweeney, Caleb Weeks, Cody Carpenter, Nathan Taylor, Yana Leonor, Andrei Krishkevich, Brian Thomas Gossett, Meshal Alshammari, Chris Peters, Sheikh Kori Rahman, Kathy & Tim Philip, Mayumi Maeda, Eric Kitchen, SR Foxley, Justin Zingsheim, Andrea Bareis, Annamaria Herrera, Moritz Schmidt, Bader AlGhamdi, Eiryn Hegland, Jessica Wode, Daniel Baulig, and Jirat


Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse

CC Kids: http://www.youtube.com/crashcoursekids

Somos una comunidad especializada en rescatar material del recuerdo.

Puedes disfrutar nuestros contenidos en:
Nuestra Web: http://www.generacionretro.net
Nuestro Twitter: https://twitter.com/gretrocool
Nuestro Facebook: http://www.facebook.com/generacionret...

Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use

Somos una comunidad especializada en rescatar material del recuerdo.

Puedes disfrutar nuestros contenidos en:
Nuestra Web: http://www.generacionretro.net
Nuestro Twitter: https://twitter.com/gretrocool
Nuestro Facebook: http://www.facebook.com/generacionretro.latino/

Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use

Somos una comunidad especializada en rescatar material del recuerdo.

Puedes disfrutar nuestros contenidos en:
Nuestra Web: http://www.generacionretro.net
Nuestro Twitter: https://twitter.com/gretrocool
Nuestro Facebook: http://www.facebook.com/generacionret...

Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use

Os Bolechas, galegofalantes, son un referente para os cativos e cativas de Galicia.
O seu éxito, en palabras do seu creador, Pepe Carreiro, débese a que os seus protagonistas, seis irmáns (Carlos, as xemelgas Loli e Pili, Braulio, Sonia, o pequeno Tatá e o seu incondicional can Chispa).

Os Bolechas, galegofalantes, son un referente para os cativos e cativas de Galicia.
O seu éxito, en palabras do seu creador, Pepe Carreiro, débese a que os seus protagonistas, seis irmáns (Carlos, as xemelgas Loli e Pili, Braulio, Sonia, o pequeno Tatá e o seu incondicional can Chispa).

#Bananas #BananasinPyjamas #BananasinPyjamasEnglish
☆ Never miss a Bananas Episode - click here to subscribe https://www.youtube.com/channe....l/UCug61OHMkz5GgJkey

☆ Bananas in Pyjamas Theme Song : https://youtu.be/6hPsXh5k0d8

Welcome to the Official Bananas in Pyjamas Channel.
On this channel you will find classic and animated full episodes.

Your favourite clips and compilations and much more! Tune in every week and see the antics of B1, B2 and their many friends.

Mayor Joseph Long of Orr, MN discusses the impact of the Fermilab NOvA experiment on his community.

Cycles are a big deal in engineering. Today we’ll explain what they are and how they’re used in heat engines, refrigerators, and heat pumps. We’ll also discuss phase diagrams and the power of using renewable energy resources

Crash Course Engineering is produced in association with PBS Digital Studios: https://www.youtube.com/playli....st?list=PL1mtdjDVOoO

***

RESOURCES:
Çengel, Yunus A., and Michael A. Boles. Thermodynamics: An Engineering Approach. 8th ed., McGraw-Hill Education.
http://hyperphysics.phy-astr.g....su.edu/hbase/thermo/
https://www.livescience.com/57....797-refrigerator-his
https://www.windows2universe.o....rg/earth/climate/cyc
https://en.oxforddictionaries.com/definition/cycle
http://www.historyofrefrigerat....ion.com/refrigeratio
https://www.asme.org/engineeri....ng-topics/articles/m
http://chemed.chem.purdue.edu/....genchem/topicreview/
https://practicalaction.org/zeer-pot-fridge
https://gizmodo.com/5935104/ho....w-to-make-an-electri
https://www.nwwindandsolar.com..../solar-power-in-seat
https://www.scientificamerican.....com/article/how-doe
http://www.qrg.northwestern.ed....u/thermo/design-libr
http://professorglobal.cbpf.br..../MathMatters/AirCond

***

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:

Mark Brouwer, Erika & Alexa Saur Glenn Elliott, Justin Zingsheim, Jessica Wode, Eric Prestemon, Kathrin Benoit, Tom Trval, Nathan Taylor, Divonne Holmes à Court, Brian Thomas Gossett, Khaled El Shalakany, Indika Siriwardena, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, D.A. Noe, Shawn Arnold, Ruth Perez, Malcolm Callis, Ken Penttinen, Advait Shinde, William McGraw, Andrei Krishkevich, Rachel Bright, Mayumi Maeda, Kathy & Tim Philip, Jirat, Eric Kitchen, Ian Dundore, Chris Peters
--

Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Tumblr - http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse

CC Kids: http://www.youtube.com/crashcoursekids

Villancicos Navideños Feliz Navidad Christmas Carols

Audio castellano. Boing.
Género: Infantil / Preescola

Scared Cowboys - Full Episode Jumble - Bananas In Pyjamas Official
Welcome to the Official Bananas in Pyjamas Channel.
On this channel you will find classic and animated full episodes.

Click Clack - The Bananas hear the strangest sounds during the night. The next day they search for what made the noise. The trail of clues keeps coming back to the Teddies, but they deny anything to do with it. Are the Teddies keeping a secret?

Rat News - Rat decides to make a TV news show about Cuddlestown with the Bananas as his cameramen. The only problem is that there is nothing to report, so Rat makes up a story about an alien - which everyone thinks is true!

The Bushwalk - Rat sells the Bananas a new map, which ends up leading them into the Teddies' backyard! The Bananas give Rat a chance to prove his maps' worth - on the condition that he joins them on their quest to a secret waterfall.

The Bird Song - A bird's loud singing disrupts the Bananas' sleep. So, the Bananas get Charlie to help them make a scarecrow. But that works so well that the Bananas sleep through the Teddies' picnic, and they decide to try to entice the little bird back.

Never miss a Bananas Episode - click here to subscribe https://www.youtube.com/channe....l/UCug61OHMkz5GgJkey

Bananas in Pyjamas Theme Song : https://youtu.be/6hPsXh5k0d8

Your favourite clips and compilations and much more! Tune in every week and see the antics of B1, B2 and their many friends.

While there are many challenges facing modern particle physics, perhaps the ultimate one (and certainly among the most difficult) is to describe the nature of gravity in the quantum realm.  Despite a century of effort, scientists have had only the most cursory of success.  In this video, Fermilab’s Dr. Don Lincoln talks about the idea of quantum gravity and sketches out the need for this difficult advance.

Related videos:
http://www.youtube.com/watch?v=XYcw8nV_GTs
http://www.youtube.com/watch?v=5UDUNqwWuNs
http://www.youtube.com/watch?v=CaQnC_UmxA4

Fermilab Director Nigel Lockyer presents current particle accelerator applications in industry, medicine and national security and discusses potential future applications: cleaning waste water, capturing gas at oil wells, treating flue gas at coal power stations, and improving durability of asphalt on roads and highways. He gave his talk at the Midwest launch of the Accelerator Stewardship Test Facility Pilot Program, ( http://iarc.fnal.gov/pilot/ ) held by Fermilab and Argonne on April 28, 2015. The program aims to give industrial partners access to particle accelerator technologies, test facilities and experts at Department of Energy national laboratories as part DOE’s accelerator stewardship program.

Fermilab's third annual Physics Slam, held on Nov. 21, 2014, featured five physicists vying to explain their area of study in the most entertaining way possible. Contestants included Micheal Hildreth, Marcelle Soares-Santos, Joseph Zennamo, Wes Ketchum and Vic Gehman, and the event was hosted by Chris Miller of the College of DuPage. Visit Fermilab online at http://www.fnal.gov. Follow the lab on Facebook at http://www.facebook.com/fermilab and on Twitter @FermilabToday.

Five scientists, ten minutes each. Tell the story of your research to the general public in such a way that you can win the day by their applause. Scientists from around the world participated in this engaging hour of presentations, presented in August 2016. Renee Hlozek 5:00, Mariel Pettee 12:51, Chris Marshall 23:20, Clara Nellist 34:37 and Dan Hooper 44:12 are the contestants. The Windy City Physics Slam was held during the 2016 ICHEP (International Conference on High Energy Physics) Conference in Chicago, with celebrity Tom Skilling of WGN-TV as the host.Visit Fermilab online at http://www.fnal.gov. Follow the lab on Facebook at http://www.facebook.com/fermilab and on Twitter @Fermilab (https://twitter.com/Fermilab).

Male crickets play tunes non-stop to woo a mate or keep enemies away. But they're not playing their song with the body part you're thinking.

Please join our community on Patreon! https://www.patreon.com/deeplook
SUBSCRIBE to Deep Look! http://goo.gl/8NwXqt

DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. See the unseen at the very edge of our visible world. Explore big scientific mysteries by going incredibly small.

---

Ask most people about crickets and you’ll probably hear that they’re all pretty much the same: just little insects that jump and chirp.

But there are actually dozens of different species of field crickets in the U.S. And because they look so similar, the most common way scientists tell them apart is by the sounds they make.

“When I hear an evening chorus, all I hear are the different species,” said David Weissman, a research associate in entomology at the California Academy of Sciences in San Francisco.

Weissman has spent the last 45 years working to identify all the species of field crickets west of the Mississippi River. In December, he published his findings in the journal Zootaxa, identifying 35 species of field crickets in the western states, including 17 new species. California alone hosts 12 species. But many closely resemble the others. So even for one of the nation’s top experts, telling them apart isn’t a simple task.

“It turns out song is a good way to differentiate,” Weissman said.

--- How do crickets chirp?

On the underside of male crickets’ wings there’s a vein that sticks up covered in tiny microscopic teeth, all in a row. It’s called the file. There's a hard edge on the lower wing called the scraper.

When he rubs his wings together - the scraper on the bottom wing grates across all those little teeth on the top wing. It’s like running your thumb down the teeth of a comb. This process of making sound is called stridulation.

--- How do crickets hear?
Crickets have tiny ears, called tympana on each of their two front legs. They use them to listen for danger and to hear each other calling.

--- Why do crickets chirp?
Crickets have several different types of songs that serve different purposes. The familiar repetitive chirping song is a mating call that male crickets produce to attract females that search for potential mates.

If a female makes physical contact with a male he will typically switch to a second higher-pitched, quieter courtship song.

If instead a male cricket comes in contact with another adult male he will let out an angry-sounding rivalry call to tell his competitor to back off.

---+ Read the entire article on KQED Science:

https://ww2.kqed.org/science/2....020/01/14/crickets-c

---+ For more information:

Professor Fernando Montealegre-Z’s bioacoustics lab
http://bioacousticssensorybiology.weebly.com/

David Weissman’s article cataloging field crickets in the U.S.
https://www.biotaxa.org/Zootax....a/article/view/zoota

---+ Shoutout!

?Congratulations ?to the following fans on our YouTube community tab for correctly identifying the name and function of the kidney bean-shaped structure on the cricket’s tibia - the tympanum, or tympanal organ:

sjhall2009
Damian Porter
LittleDreamerRem
Red Segui
Ba Ri

---+ Thank you to our Top Patreon Supporters ($10+ per month)!

Alice Kwok
Allen
Amber Miller
Aurora
Aurora Mitchell
Barbara Pinney
Bethany
Bill Cass
Blanca Vides
Burt Humburg
Caitlin McDonough
Carlos Carrasco
Chris B Emrick
Chris Murphy
Cindy McGill
Companion Cube
Daisuke Goto
Daniel Weinstein
David Deshpande
Dean Skoglund
Edwin Rivas
Egg-Roll
Elizabeth Ann Ditz
Geidi Rodriguez
Gerardo Alfaro
Guillaume Morin
Jane Orbuch
Joao Ascensao
johanna reis
John King
Johnnyonnyful
Josh Kuroda
Joshua Murallon Robertson
Justin Bull
Kallie Moore
Karen Reynolds
Katherine Schick
Kathleen R Jaroma
Kendall Rasmussen
Kristy Freeman
KW
Kyle Fisher
Laura Sanborn
Laurel Przybylski
Leonhardt Wille
Levi Cai
Louis O'Neill
luna
Mary Truland
monoirre
Natalie Banach
Nathan Wright
Nicolette Ray
Nikita
Noreen Herrington
Osbaldo Olvera
Pamela Parker
Richard Shalumov
Rick Wong
Robert Amling
Robert Warner
Roberta K Wright
Sarah Khalida Mohamad
Sayantan Dasgupta
Shelley Pearson Cranshaw
Silvan Wendland
Sonia Tanlimco
SueEllen McCann
Supernovabetty
Syniurge
Tea Torvinen
TierZoo
Titania Juang
Trae Wright
Two Box Fish
WhatzGames

---+ About KQED

KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.

Funding for Deep Look is provided in part by PBS Digital Studios. Deep Look is a project of KQED Science, which is also supported by the National Science Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Fuhs Family Foundation, Campaign 21 and the members of KQED.