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  • 07:16 Derivative as a concept

    Derivative as a concept

    398 views / 0 likes - added

    Introduction to the idea of a derivative as instantaneous rate of change or the slope of the tangent line.

  • 15:43 Calculus: Derivatives 1 (new HD version)

    Calculus: Derivatives 1 (new HD version)

    529 views / 0 likes - added

    Calculus-Derivative: Understanding that the derivative is just the slope of a curve at a point (or the slope of the tangent line) More free lessons at: http://www.khanacademy.org/video?v=ANyVpMS3HL4

  • 39:09 The BIGGEST CASPER The FRIENDLY GHOST COMPILATION: Casper, Wendy and more! [Cartoons - HD 1080p]

    The BIGGEST CASPER The FRIENDLY GHOST COMPILATION: Casper, Wendy and more! [Cartoons - HD 1080p]

    340 views / 0 likes - added

    Just in time for Halloween! This compilation features some of the best-known episodes of Casper the Friendly Ghost. The episodes' details and table of contents are listed below, and please subscribe for more entertaining movies and cartoons! All episodes

  • 02:12 Growing Bacteria - Sick Science! #210

    Growing Bacteria - Sick Science! #210

    618 views / 0 likes - added

    See the full experiment here: http://www.stevespanglerscience.com/lab/experiments/growing-bacteria Get everything you need here: http://www.stevespanglerscience.com/bacteria-growing-kit.html This activity will prove that Mom was right... "Wash your hands

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  • 05:04 Skylight: Why Does Earth Have Seasons?

    Skylight: Why Does Earth Have Seasons?

    81 views / 0 likes - added

    The amount of daylight we experience varies throughout the year from place to place. Some places have longer days and nights than others, and the length of each day changes with the seasons. Find out why Earths tilt is the reason we have seasons.#seasons

  • 04:01 Product rule - Calculus derivatives tutorial

    Product rule - Calculus derivatives tutorial

    312 views / 0 likes - added

    Learn how to take the derivative of a function using the product rule. This complete calculus derivatives tutorial explains why and how to use the product rule. To see all my calculus videos check out my website http://MathMeeting.com My name is Chris and

  • 04:28 Product rule - Logarithm derivatives example

    Product rule - Logarithm derivatives example

    300 views / 0 likes - added

    Learn calculus with this product rule Derivative example with logarithms and exponential functions. This complete calculus derivatives tutorial explains why and how to use the product rule. To see all my calculus videos check out my website http://MathMee

  • 35:45 Tour the Hall of Saurischian Dinosaurs at the American Museum of Natural History!

    Tour the Hall of Saurischian Dinosaurs at the American Museum of Natural History!

    80 views / 0 likes - added

    Visit your favorite theropods, maniraptors, and more during this live tour of the Hall of Saurischian Dinosaurs with Museum guide Andrew Epstein, who offers highlights and fun facts, and fields viewer questions. #LearnWithMe #AMNH #Dinosaur #Museum #Trex

  • 05:22 Skylight: Looking Back in Time at the Speed of Light

    Skylight: Looking Back in Time at the Speed of Light

    157 views / 0 likes - added

    Light takes time to travel from stars and distant galaxies to observers here on Earth. How much have the stars changed since first emitting the light that we see tonight? How far back in time are we seeing when we look at the night sky? #lightyear #astron

  • 05:40 The ABCs of Cephalopods with Conservation Biologist Samantha Cheng

    The ABCs of Cephalopods with Conservation Biologist Samantha Cheng

    164 views / 0 likes - added

    Happy Cephalopod Week! How many hearts does an octopus have? Why do some squid glow in the dark? And what does a zebra display have to do with the giant Australian cuttlefish? Museum conservation biologist Samantha Cheng takes you through the world of cep

  • 26:42 Seeing Is Believing - AMNH SciCafe

    Seeing Is Believing - AMNH SciCafe

    265 views / 0 likes - added

    How do our brains make sense of the world our eyes see? How does attention affect our perception? And how is it possible to miss things even if they are right in front of us? Marisa Carrasco, a professor of psychology and neural science at New York Univer

  • 02:58 Skylight: How Does Our Solar System Move Around the Milky Way?

    Skylight: How Does Our Solar System Move Around the Milky Way?

    282 views / 0 likes - added

    The planets orbit the Sun in a fairly flat plane. How does that plane relate to the orientation of the Milky Way? If we could see the Sun moving among our night sky constellations, which direction would it be heading? Watch this video to learn how our sol

  • 02:51 Are we alone in the universe?

    Are we alone in the universe?

    118 views / 0 likes - added

    Will we ever find intelligent life in the universe? Astrophysicist Jackie Faherty explains two ways scientists approach answering this age-old question.If you want to know if there are dinosaurs still alive today, watch this weeks Dinosaur video: https://

  • 02:10 Are dinosaurs still alive today?

    Are dinosaurs still alive today?

    672 views / 2 likes - added

    All dinosaurs went extinct during the Cretaceous era, right? Wrong! Paleontologist Aki Watanabe explains how birds are evolved from dinosaurs, and how T. rex had more in common with a turkey than a turtle. If you want to know if life exists elsewhere in t

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  • 04:47 The Squid and the Whale: Evidence for an Epic Encounter

    The Squid and the Whale: Evidence for an Epic Encounter

    496 views / 0 likes - added

    Happy Cephalopod Week! One of the most famous dioramas in the American Museum of Natural History depicts a battle between two gigantic animals: the sperm whale and giant squid. But unlike most dioramas in the Museum’s halls, this scene has never been witn

  • 03:49 Rosetta Comet Mission in 360

    Rosetta Comet Mission in 360

    92 views / 0 likes - added

    The mission: to track down and land on a comet as it moved around the Sun. After a 10-year chase, the European Space Agency's Rosetta spacecraft found its target, Comet 67P (Churyumov-Gerasimenko), gathering new information that will fuel scientific inqui

  • 06:23 Seven Million Years of Human Evolution

    Seven Million Years of Human Evolution

    313 views / 0 likes - added

    Scientists use fossils to reconstruct the evolutionary history of hominins—the group that includes modern humans, our immediate ancestors, and other extinct relatives. Today, our closest living relatives are chimpanzees, but extinct hominins are eve

  • 03:16 How do we find new planets?

    How do we find new planets?

    160 views / 0 likes - added

    It’s possible to see many of the planets in our solar system just by looking up at the night sky—but only those that are largest and closest to our Sun. Astrophysicist Jackie Faherty explains a few of the more advanced astrometric techniques used to detec

  • 03:10 How long did a T. rex live?

    How long did a T. rex live?

    114 views / 0 likes - added

    Paleontologist Aki Watanabe reveals what took Tyrannosaurus rex from tiny hatchling to mega predator, as well as the evidence scientists use to learn more about a dinosaurs lifespan.If you want to learn even more about the ultimate predator, visit our new

  • 03:23 How do you find dinosaur fossils?

    How do you find dinosaur fossils?

    217 views / 0 likes - added

    In popular culture, paleontologists are often seen brushing sand off of a complete dinosaur skeleton with ease—but is digging for dinosaurs really that easy? Paleontologist Aki Watanabe reveals what really goes on during a fossil finding expedition. Spoil

  • 02:40 Spider Expert Cheryl Y. Hayashi On Silk, Webs, and More

    Spider Expert Cheryl Y. Hayashi On Silk, Webs, and More

    332 views / 1 likes - added

    How do spiders make their webs? Turns out it’s in their DNA. Spider expert and Museum curator Cheryl Y. Hayashi discusses her research into spider silk, why it’s an exciting time to be a biologist, and why natural history museums are so important to the f

  • 02:04 Why are Fossil Shark Skeletons So Rare?

    Why are Fossil Shark Skeletons So Rare?

    186 views / 0 likes - added

    Happy Shark Week! Shark teeth are among the most common vertebrate fossils you can find, and yet fossilized shark skeletons are harder to come by. Paleontologist and Curator Emeritus John Maisey explains how sharks' cartilaginous skeletons differ from tho

  • 01:21 The Butterfly Life Cycle

    The Butterfly Life Cycle

    301 views / 1 likes - added

    Butterflies aren't born as we recognize them–they go through a process called metamorphosis to change from a caterpillar to a chrysalis to an adult butterfly. See live butterflies, moths, and chrysalises at the American Museum of Natural History's Butterf

  • 03:09 Did an asteroid kill the dinosaurs?

    Did an asteroid kill the dinosaurs?

    200 views / 0 likes - added

    Around 66 million years ago, all non-avian dinosaurs went extinct. Was the culprit a 6-mile wide asteroid that collided with Earth? Or did other factors contribute to the dinosaurs’ die-off? Paleontologist Aki Watanabe looks at other theories for wh

  • 02:57 How do we know an asteroid hit Earth 66 million years ago?

    How do we know an asteroid hit Earth 66 million years ago?

    268 views / 0 likes - added

    One theory for why the dinosaurs went extinct is that an asteroid hit Earth at the end of the Cretaceous period. But since no one was alive to see it, how can we know that it really happened? Astrophysicist Jackie Faherty reveals how clues found in sedime

  • 01:38 Our Senses: Touch, From Single Cell To Whiskers

    Our Senses: Touch, From Single Cell To Whiskers

    298 views / 0 likes - added

    Touch is perhaps the most primordial sense – even some single-celled organisms are able to sense pressure. Humans have many different types of touch receptors, including one that can also be found at the base of cat and mouse whiskers. OUR SENSES, a new e

  • 01:48 Our Senses: What Sluggish Sloths Tell Us About Balance

    Our Senses: What Sluggish Sloths Tell Us About Balance

    332 views / 1 likes - added

    We don’t always think of balance as one of our senses, but scientists often consider it as essential as sight, hearing, smell, taste, and touch. For a species like the three-toed sloth, however, there’s little need for this sixth sense. Check out the Muse

  • 05:01 The Butterfly Conservatory in 360

    The Butterfly Conservatory in 360

    228 views / 0 likes - added

    The Butterfly Conservatory is closing for the season on May 29, 2017! This annual favorite features up to 500 live, free-flying tropical butterflies from South, Central, and North America, Africa, and Asia. Housed in a vivarium that approximates their nat

  • 05:16 Swimming With Giants 360

    Swimming With Giants 360

    291 views / 0 likes - added

    Earth’s oceans have been home to giant animals for hundreds of millions of years, but we know surprisingly little about their daily lives. Have you ever wondered what it would be like to swim with some of these giants of the deep? Dive into this video to

  • 13:26 What Color Is a Blue Whale?

    What Color Is a Blue Whale?

    92 views / 0 likes - added

    Did you know theres been a blue whale model at the American Museum of Natural History for over 100 years? The huge icon hanging in the Milstein Hall of Ocean Life has been a visitor favorite for decades. But over time, the way we see whales has changed dr

  • 08:34 Pond Scum Under the Microscope - Pondlife, Episode #1

    Pond Scum Under the Microscope - Pondlife, Episode #1

    178 views / 0 likes - added

    We are surrounded by microscopic organisms that are too small to see with the naked eye. Follow Museum microbiologist Sally Warring as she reveals the invisible inhabitants of the green slime at the surface of a pond in Central Park. In this first episode

  • 01:39 Our Senses: How Mammals See the World In Many Colors

    Our Senses: How Mammals See the World In Many Colors

    428 views / 0 likes - added

    Humans see a variety of colors because our eyes have three types of cone cells. But things don't look quite as vivid for some of our fellow mammals—some see in two colors, others just in black and white. Color vision evolved in primates about 35 million y

  • 06:21 What Did a Baby T. rex Look Like?

    What Did a Baby T. rex Look Like?

    221 views / 1 likes - added

    Did you know that when Tyrannosaurus rex was a hatchling it was most likely covered in fluffy feathers? Go behind the scenes of the new exhibition T. rex: The Ultimate Predator, which opens March 11 at the American Museum of Natural History, with paleonto

  • 11:38 What Lives In Moss? - Pondlife, Episode #3

    What Lives In Moss? - Pondlife, Episode #3

    154 views / 0 likes - added

    Microbes aren't just found in ponds. They're also abundant in and around plants and soils. Mosses, some of the oldest plants on land, are home to many species of microbes. In Episode 3 of Pondlife, Sally and fellow Museum scientist Michael Tessler travel

  • 24:05 The Power of Poop — AMNH SciCafe

    The Power of Poop — AMNH SciCafe

    234 views / 0 likes - added

    Did you know that some of the bacteria living inside us are essential for our health? Gastroenterologist Ari Grinspan delves into the complex world of the microbiome in the human digestive system. He explains how transplanting bacteria from healthy people

  • 03:02 How Corals Hold Centuries of Ocean Climate Data

    How Corals Hold Centuries of Ocean Climate Data

    233 views / 0 likes - added

    Before we can make a plan to protect our oceans from climate change, we need to know what they were like before human impact. We haven’t been collecting ocean data for very long, but luckily one ocean marine organism has been keeping records for millennia

  • 26:24 The Milky Way as You’ve Never Seen It Before – AMNH SciCafe

    The Milky Way as You’ve Never Seen It Before – AMNH SciCafe

    150 views / 0 likes - added

    Fly through the galaxy with Museum astrophysicist Jackie Faherty, who takes us on a dazzling tour of new research and data visualizations made possible by recently released data from the Gaia space telescope. In April 2018, the European Space Agency’s Gai

  • 08:22 Understanding Trends Through Calculus I The Great Courses

    Understanding Trends Through Calculus I The Great Courses

    458 views / 0 likes - added

    Change and Motion: Calculus Made Clear, 2nd Edition Try a free month trial of The Great Courses Plus here: https://www.thegreatcoursesplus.com/special-offer?utm_source=US_OnlineVideo&utm_medium=SocialMediaEditorialYouTube&utm_campaign=136256 The True Geni

  • 06:25 Human Population Through Time

    Human Population Through Time

    257 views / 0 likes - added

    It took 200,000 years for our human population to reach 1 billion—and only 200 years to reach 7 billion. But growth has begun slowing, as women have fewer babies on average. When will our global population peak? And how can we minimize our impact on

  • 05:04 Space Volcanoes - Shelf Life 360

    Space Volcanoes - Shelf Life 360

    398 views / 0 likes - added

    Here on Earth, volcanic eruptions are dramatic manifestations of our dynamic planet. Elsewhere in our solar system, awe-inspiring extraterrestrial volcanoes—both active and extinct—provide clues to planetary formation and hints of how life may


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