Catalog Search Results
Language
English
Formats
Description
NOVA's expert team looks for the signature of a volcanic eruption big enough to have blasted a huge cloud of ash and sulfuric acid into the atmosphere. Killer Volcanoes spotlights the search for the mystery volcano that plunged the globe into a deep freeze and inflicted famine on medieval Europe.
Language
English
Formats
Description
Whether it’s electric lights, addiction to digital devices, or just the fast pace of modern life, one thing is clear: it seems to be getting harder to get a good night’s sleep. Almost 50 percent of Americans say they can’t get the zzzs they need. To understand why many are sleep deprived, take a deep dive into the body’s control center, the brain, and follow the work of researchers who are unraveling the secrets of sleep.
Publisher
Electric Entertainment
Language
English
Description
With magic returned to the world, the Librarians are needed now more then ever. Jacob Stone, Eezekiel Jones and Cassandra Cillian have taken on the role of full-time Librarians, and together with their guardian, Eve Baird, long-time Librarian, Flynn Carsen and their caretaker, Jenkins, they will face all the challenges that this new age of magic is bringing to the world. An ancient spell has brought some of the greatest fictional villains off the...
4) Autonomy
Publisher
Gravitas Ventures LLC
Language
English
Description
Acclaimed author, Malcolm Gladwell, leads this feature documentary about the emerging technology of self-driving vehicles and the big questions they raise: what is control and who do we become as we relinquish it to machines? Official Selection at the **SXSW Film Festival** and **Mill Valley Film Festival**.
Publisher
Giant Interactive
Language
English
Description
In less than a generation, cell phones and the Internet have revolutionized virtually every aspect of our lives, transforming how we work, socialize and communicate. But what are the health consequences of this invisible convenience? GENERATION ZAPPED investigates the dangers of daily exposure to wireless technologies – including the devastating effects on our health from infertility to cancer – and suggests ways to reduce overexposure. Winner...
Publisher
Bleecker Street
Language
English
Formats
Description
Jack (John Reynolds) and Su (Sunita Mani) are a hip Brooklyn couple who, like many of their friends, find themselves dependent on technology and unable to put down their phones. Fearing their mindless scrolling may impact their connection with each other, they seize the chance to head to an isolated cabin in the woods, vowing to unplug from the outside world for a week. Sheltered from texts and push notifications, they are blissfully unaware that...
8) Black Code
Publisher
Music Box Films
Language
English
Description
This documentary examines how governments are manipulating the Internet to control their citizens, creating challenges to our ideas of citizenship, privacy, and democracy. Official Selection at the **Toronto International Film Festival**. *"BLACK CODE pulls back the curtain of awful government intrusion in very immediate terms. Genuinely terrifying, because these things are happening to regular citizens all over the world, it comes from the heart...
Publisher
Collective Eye Films
Language
English
Description
A gripping docu-thriller about a groundbreaking surveillance program, the brilliant mastermind behind it and how a perfect alternative to mass surveillance was killed by NSA-management for money – three weeks prior to 9/11. Bill Binney was a brilliant cryptologist, long-time National Security Agency analyst, and Technical Director. He developed a sophisticated program named ThinThread for gathering data capable of providing clues, in real-time,...
Publisher
The Great Courses
Language
English
Description
Learn why scientists believe comets, the "leftovers" of planet formation in the outer solar system, could be partially responsible for the flourishing of life on Earth, bringing both water and organic material to the inner solar system. And explore the more distant Oort Cloud, where billions of cometary objects orbit at the outermost boundary of the solar system.
Publisher
The Great Courses
Language
English
Description
Peer into the structure of a cesium atom to see what makes it ideal for measuring the length of a second and serving as the basis for atomic clocks. Then head into space to learn how GPS satellites use atomic clocks to triangulate positions on the ground. Finally, delve into Einstein’s special and general theories of relativity to understand the corrections that GPS must make to stay accurate.
Publisher
The Great Courses
Language
English
Description
Anyone who makes use of a memory stick, a solid-state hard drive, or a smartphone relies on one of the most baffling aspects of the quantum world: quantum tunneling. Professor Carlson uses a roller coaster analogy, combined with your newly acquired insight into wave mechanics, to make this feat of quantum sorcery (the equivalent of walking through walls) perfectly logical.
Publisher
The Great Courses
Language
English
Description
See how distinctly different electrical circuits can implement basic logic operations, and how simple logic gates come together to form complex logic circuits, ultimately including computers. Return to transistors to see how both BJTs and MOSFETs are used to implement logic gates, the latter in an arrangement called Complementary Metal Oxide Semiconductor (CMOS).
Publisher
The Great Courses
Language
English
Description
Given the striking similarities between the four terrestrial planets, why is Earth the only one teeming with life? Proposed as a bold theory less than 70 years ago, could plate tectonics be a main driver of life on Earth? Explore the fascinating movement of our planet’s surface and the many ways in which a geologically active Earth has sustained our biologically active planet.
Publisher
The Great Courses
Language
English
Description
What is the difference between electricity and electronics? Begin your study of modern electronics by examining this distinction, and observe how electronics use the basic properties of electric circuits in a more sophisticated way. Witness firsthand how resistance is described with Ohm's law, and learn how to measure electric power.
Publisher
The Great Courses
Language
English
Description
Close with one of Professor Carlson’s favorite topics: superconductivity. While electrons lose energy to resistance when they flow through a metal, this is not true of superconductors. Learn how quantum stability allows superconductors to conduct electricity with zero resistance, then step back and summarize the high points of your quantum tour.
Publisher
The Great Courses
Language
English
Description
Heisenberg's uncertainty principle sets a fundamental limit on how much we can know about an object's position and momentum at the same time. Professor Carlson introduces this simple equation, showing how it explains why atoms have structure and come in the diverse forms of the periodic table of elements. Surprisingly, the stability of our everyday world rests on uncertainty at the quantum level.
Publisher
The Great Courses
Language
English
Description
Put your knowledge to use by building a complete audio amplifier. First, create a two-stage amplifier, then add capacitors to increase the amplification, or gain. Add a power output stage to drive a loudspeaker. Finally, add a volume control. In addition, learn how biasing with diodes can eliminate a subtle form of distortion.
Publisher
The Great Courses
Language
English
Description
Planets orbiting other stars used to be purely in the realm of science fiction. How did we begin discovering them by the thousands? Learn about the methods scientists have used to discover so many exoplanets so quickly. From "hot Jupiters" to "mini-Neptunes" to planets whose clouds rain molten glass, these discoveries demonstrate that ours is not the only type of planetary system possible!
Publisher
The Great Courses
Language
English
Description
What are the next big ideas that will help us ask and answer the next big questions? Consider the fascinating future technologies of centimeter-sized satellites propelled by laser photons, liquid mirror telescopes on the Moon, a magnetic shield large enough to help terraform Mars, and more. Nourish your imagination, and experience the inspiration of space exploration!
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