Search Constraints
Number of results to display per page
Results for:
Language
English
Remove constraint Language: English
Tags sim
History
Remove constraint Tags sim: History
Search Results
-
Video
James Beacham looks for answers to the most important open questions of physics using the biggest science experiment ever mounted, CERN's Large Hadron Collider. In this fun and accessible talk about how science happens, Beacham takes us on a journey through extra-spatial dimensions in search of undiscovered fundamental particles (and an explanation for the mysteries of gravity) and details the drive to keep exploring.
- Subjects:
- Physics
- Keywords:
- Particles (Nuclear physics) -- Research Astrophysics Nuclear astrophysics
- Resource Type:
- Video
-
Video
Berg begins his lecture with a brief history of observations of bacterial motion. He then uses physics to describe the many hurdles that E. coli must overcome as it tries to swim up or down a chemical gradient. For instance, an entity as tiny as E. coli is constantly buffeted by Brownian motion and can neither stay still nor swim in a straight line. Then there is the question of how E. coli senses a gradient and translates that information into a change in its direction of movement. And finally, how does E. coli use its flagella to generate thrust at all? In Part 2, Berg explains that E. coli travels using a series of runs, when it moves in a straight line, and tumbles, when it changes direction. During a run, all of the flagella are moving counterclockwise in a tight bundle. During a tumble, one or more flagella switch to a clockwise movement and disengage from the bundle causing a change in the swimming direction. The motor that drives the rotation of the flagella is an amazing structure made of about 20 different protein parts. Berg tells us that chemosensory receptors on the cell surface detect a chemical gradient and transfer this information, via protein phosphorylation, to the motor. This chemical modification determines the direction of motor rotation and, hence, the direction the E. coli swims. An amazing system that E. coli has been perfecting for millions of years!
- Subjects:
- Physics and Biology
- Keywords:
- Bacteria -- Motility Physics Escherichia coli
- Resource Type:
- Video
-
Video
Whether or not you realize it, surfers are masters of complicated physics. The science of surfing begins as soon as a board first hits the water. Surfers may not be thinking about weather patterns in the Pacific, tectonic geology or fluid mechanics, but the art of catching the perfect wave relies on all these things and more. Nick Pizzo dives into the gnarly physics that make surfing possible.
-
Video
What would a sustainable, universally beneficial economy look like? "Like a doughnut," says Oxford economist Kate Raworth. In a stellar, eye-opening talk, she explains how we can move countries out of the hole -- where people are falling short on life's essentials -- and create regenerative, distributive economies that work within the planet's ecological limits.
- Subjects:
- Economics
- Keywords:
- Economic development Sustainable development
- Resource Type:
- Video
-
Video
How does your genetic inheritance, culture and history influence your health? Biological anthropologist Lara Durgavich discusses the field of evolutionary medicine as a gateway to understanding the quirks of human biology -- including why a genetic mutation can sometimes have beneficial effects -- and emphasizes how unraveling your own evolutionary past could glean insights into your current and future health.
- Subjects:
- Health Sciences, Public Health, and Human Biology
- Keywords:
- Human genetics Health
- Resource Type:
- Video
-
Video
It's 1762 BCE. As dawn breaks in the Babylonian city of Sippar, Beltani— a priestess and businesswoman— receives an urgent visit from her brother. He makes a troubling accusation: her tavern keeper has been undermining the business Beltani relies on in her old age. Now she has just a few short hours to find out the truth. Soraya Field Fiorio details a day in the life of a Babylonian naditu.
- Subjects:
- Area Studies
- Keywords:
- Middle East -- Babylonia Social conditions Women
- Resource Type:
- Video
-
Video
Vanessa Ruiz takes us on an illustrated journey of human anatomical art over the centuries, sharing captivating images that bring this visual science -- and the contemporary artists inspired by it -- to life. "Anatomical art has the power to reach far beyond the pages of a medical textbook," she says, "connecting our innermost selves with our bodies through art."
- Keywords:
- Medicine art Medical illustration
- Resource Type:
- Video
-
Others
This website provides knowledge of different Chinese histories and covers the topic of : (1) Inventions & Science-Printing Press (2) Taiping Rebellion (3) Ming Dynasty (4) Qin Dynasty (5) Han Dynasty (6) Tang Dynasty (7) Shang Dynasty (8) Skill Road (9) 8 Parties so wild they made it into history books (10) Greeks may have influenced China's terra cotta army (11) 7 historical treasures discovered by accident
- Course related:
- APSS1H34C Governing China Politics and Legal System
- Subjects:
- Chinese Studies
- Keywords:
- China History
- Resource Type:
- Others
-
Video
At Crash Course, we believe that high quality educational videos should be available to everyone for free! Subscribe for weekly videos from our current courses! Right now, we're producing Organic Chemistry and European History. We also recently teamed up with Arizona State University to bring you two more courses: Study Hall Composition, and Study Hall Algebra. The Crash Course team has produced more than 32 courses on a wide variety of subjects, including organic chemistry, literature, world history, biology, philosophy, theater, ecology, and many more!
- Keywords:
- Open educational resources
- Resource Type:
- Video
-
Others
Built on the widest range of trusted, high-quality, interdisciplinary research and scholarly literature, ScienceDirect helps uncover answers to the world’s most pressing questions. Whether you’re a teacher, student, librarian or researcher, ScienceDirect will help you build a solid knowledge foundation, stay on top of your field and gain in-depth insights into trending topics as you take your next steps in discovery. Physical Sciences & Engineering publications cover a range of disciplines, from the theoretical to the applied. Health Sciences collections — covering education, reference information and decision support — keep you up-to-date on medical developments to stimulate research and improve patient care. Life Sciences journal articles and book chapters feature original research, insightful analysis, current theory and more. Social Sciences & Humanities journals and books highlight historical context, current developments, theories, applications, trends and more.
- Keywords:
- Science Medical sciences Life sciences Technology Social sciences Physical sciences
- Resource Type:
- Others
- « Previous
- Next »
- 1
- 2
- 3