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2013
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Video
Months after he was born, in 1948, Ron McCallum became blind. In this charming, moving talk, he shows how he reads -- and celebrates the progression of clever tools and adaptive computer technologies that make it possible. With their help, and the help of volunteers, he's become a lawyer, an academic, and, most of all, a voracious reader. Welcome to the blind reading revolution.
- Subjects:
- Technology, Electronic and Information Engineering, and Computing
- Keywords:
- Assistive computer technology Reading -- Aids devices Blind -- Books reading
- Resource Type:
- Video
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Video
In 1969, Buzz Aldrin’s historical step onto the moon leapt mankind into an era of technological possibility. The awesome power of technology was to be used to solve all of our big problems. Fast forward to present day, and what's happened? Are mobile apps all we have to show for ourselves? Journalist Jason Pontin looks closely at the challenges we face to using technology effectively ... for problems that really matter.
- Subjects:
- Technology
- Keywords:
- Technological innovations Technology -- Political aspects Technology -- Social aspects
- Resource Type:
- Video
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Video
Having trouble remembering the order of operations? Let's raise the stakes a little bit. What if the future of your (theoretical) kingdom depended on it? Garth Sundem creates a world in which PEMDAS is the hero but only heroic when in the proper order.
- Subjects:
- Mathematics and Statistics
- Keywords:
- Games in mathematics education Games -- Mathematics
- Resource Type:
- Video
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Video
What's so special about Leonardo da Vinci's Vitruvian Man? With arms outstretched, the man fills the irreconcilable spaces of a circle and a square -- symbolizing the Renaissance-era belief in the mutable nature of humankind. James Earle explains the geometric, religious and philosophical significance of this deceptively simple drawing.
- Subjects:
- History and Mathematics and Statistics
- Keywords:
- Mathematics -- Social aspects Vitruvian man (Leonardo da Vinci)
- Resource Type:
- Video
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Video
When two people join a dating website they are matched according to shared interests and how they answer a number of personal questions. But how do sites calculate the likelihood of a successful relationship? Christian Rudder one of the founders of popular dating site OKCupid details the algorithm behind 'hitting it off.'
- Subjects:
- Computing and Mathematics and Statistics
- Keywords:
- Dating services Computer algorithms Online dating
- Resource Type:
- Video
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Video
What lessons can economics learn from art? Megan Wilkens examines how, historically, trends in the art world have offered a prescient window into wide-ranging socio-economic shifts in society. If economists look closely at art, they might be privy to unexpected changes in cultural behavior.
- Subjects:
- Society and Culture
- Keywords:
- Art -- Economic aspects Art society
- Resource Type:
- Video
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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
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Video
Traveling is extremely arduous for microscopic sperm -- think of a human trying to swim in a pool made of...other humans. We can compare the journey of a sperm to that of a sperm whale by calculating the Reynolds number, a prediction of how fluid will behave, often fluctuating due to size of the swimmer. Aatish Bhatia explores the great (albeit tiny) sperm's journey.
- Subjects:
- Physics
- Keywords:
- Fluid dynamics Sperm whale Spermatozoa
- Resource Type:
- Video
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Video
When Eric Dishman was in college, doctors told him he had 2 to 3 years to live. That was a long time ago. Now, Dishman puts his experience and his expertise as a medical tech specialist together to suggest a bold idea for reinventing health care -- by putting the patient at the center of a treatment team.
- Subjects:
- Management of Health Care Services
- Keywords:
- Medical care Health services administration
- Resource Type:
- Video
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Video
We face an endless string of choices, which leads us to feel anxiety, guilt and pangs of inadequacy that we are perhaps making the wrong ones. But philosopher Renata Salecl asks: Could individual choices be distracting us from something bigger—our power as social thinkers? A bold call for us to stop taking personal choice so seriously and focus on the choices we're making collectively.
- Subjects:
- Psychology and Philosophy
- Keywords:
- Medical care Choice (Psychology)
- Resource Type:
- Video
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Video
Collecting global health data is an imperfect science: Workers tramp through villages to knock on doors and ask questions, write the answers on paper forms, then input the data -- and from this messy, gappy information, countries and NGOs need to make huge decisions. Data geek Joel Selanikio talks through the sea change in collecting health data in the past decade -- starting with the PalmPilot and Hotmail, and now moving into the cloud.
- Subjects:
- Health Technology and Informatics
- Keywords:
- Medicine -- Data processing Medical informatics
- Resource Type:
- Video
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Video
Every cell in the human body has a sex, which means that men and women are different right down to the cellular level. Yet too often, research and medicine ignore this insight -- and the often startlingly different ways in which the two sexes respond to disease or treatment. As pioneering doctor Paula Johnson describes in this thought-provoking talk, lumping everyone in together means we essentially leave women's health to chance. It's time to rethink.
- Subjects:
- Health Sciences
- Keywords:
- Men -- Health hygiene Women -- Health hygiene Health -- Sex differences
- Resource Type:
- Video
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Video
You stick cookie dough into an oven, and magically, you get a plate of warm, gooey cookies. Except it's not magic; it's science. Stephanie Warren explains via basic chemistry principles how the dough spreads out, at what temperature we can kill salmonella, and why that intoxicating smell wafting from your oven indicates that the cookies are ready for eating.
- Subjects:
- Chemistry and Food Science
- Keywords:
- Food -- Composition Food -- Analysis
- Resource Type:
- Video
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Video
Creativity has never been more essential to competitiveness in the business world, but the critical approach to practical originality in organizations is often lacking. Alan Iny offers a key to think outside the box: apply doubt to the very models and philosophies that make up the box itself.
- Keywords:
- Creative ability in business
- Resource Type:
- Video
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Video
What does the future of business look like? In an informative talk, Philip Evans gives a quick primer on two long-standing theories in strategy -- and explains why he thinks they are essentially invalid.
- Subjects:
- Business Information Technology
- Keywords:
- Business enterprises -- Technological innovations Business -- Data processing
- Resource Type:
- Video
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Video
Why do we turn to nonprofits, NGOs and governments to solve society's biggest problems? Michael Porter admits he's biased, as a business school professor, but he wants you to hear his case for letting business try to solve massive problems like climate change and access to water. Why? Because when business solves a problem, it makes a profit -- which lets that solution grow.
- Subjects:
- Management
- Keywords:
- Social change Industries -- Social aspects Business enterprises
- Resource Type:
- Video
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Video
The New Yorker receives around 1,000 cartoons each week; it only publishes about 17 of them. In this hilarious, fast-paced, and insightful talk, the magazine's longstanding cartoon editor and self-proclaimed "humor analyst" Bob Mankoff dissects the comedy within just some of the "idea drawings" featured in the magazine, explaining what works, what doesn't, and why.
- Subjects:
- Visual Arts
- Keywords:
- New Yorker (New York N.Y. : 1925) Wit humor Caricatures cartoons
- Resource Type:
- Video
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Video
Social systems are quickly becoming part of the real world and a reflection of it, a means by which we can communicate with each other more efficiently. With people at the center of the web, we have the ability to transcend our limited physical reality and create something that can connect us faster than ever before. But in this brave new world, we must understand our existing social truths -- why we are social in the first place and what our true needs really are -- to be the most effective. The talk explores the fundamental psychological underpinnings of our human society -- in the greater spectrum of humanity and evolution -- that can explain how we can utilize social technology to move us closer to our self actualization.
- Subjects:
- Sociology
- Keywords:
- Social systems
- Resource Type:
- Video
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Video
課程簡介：微分表切線斜率，積分表曲線下圍出的面積，兩截然不同的東西透過微積分基本定理連結在一起。
- Course related:
- AMA1007 Calculus and Linear Algebra
- Subjects:
- Mathematics and Statistics
- Keywords:
- Calculus
- Resource Type:
- Video
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Video
In 46 episodes, Hank Green will teach you chemistry! This course is mostly based on the 2012 AP Chemistry curriculum, but it also covers some introductory organic chemistry. By the end of the course, you will be able to: * Utilize the fundamental tools of chemistry, including the periodic table, nomenclature, and basic lab safety techniques * Understand the structure of matter * Predict and explain chemical reactions, and comprehend the many ways they affect our world * Reason through problems involving kinetics, thermodynamics, and chemical equilibrium * Recognize different organic chemicals and their uses
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Video
課程應用大量具體生動的史實資料，再現近百年來這一跌宕起伏、波瀾壯闊的歷史進程，特別是重現這一過程中那些激蕩人心、感天動地的重大事件和人物，並在此基礎上總結這一過程的根本經驗和啟示。
- Course related:
- CC312P Women in China
- Subjects:
- Chinese Studies
- Keywords:
- China History Women
- Resource Type:
- Video
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Video
In this video produced at The University of Manchester in 1972 the eminent Cornelius Lanczos is interviewed on his contributions to applied mathematics. Copyright by The University of Manchester.
- Course related:
- AMA613 Mathematics Seminar and ELC6001 Presentation Skills for Research Students
- Subjects:
- Mathematics and Statistics
- Keywords:
- Interviews Lanczos Cornelius 1893-1974
- Resource Type:
- Video
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Video
Differential calculus on Khan Academy: Limit introduction, squeeze theorem, and epsilon-delta definition of limits.
- Course related:
- AMA1110 Basic Mathematics I – Calculus and Probability & Statistics and BRE2031 Environmental Science
- Subjects:
- Mathematics and Statistics
- Keywords:
- Differential calculus
- Resource Type:
- Video
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Video
In the first part of this lecture from Tom Foulsham, you will learn what facial recognition is and how facial inversion can impair our ability to recognise familiar faces. This lecture is taken from the "Cognitive Psychology I" module which covers major areas of cognitive psychology as defined by the British Psychological Society, such as visual and auditory perception, and visual cognition.
- Course related:
- APSS5775 Practice Research
- Subjects:
- Psychology
- Keywords:
- Facial expression Cognitive psychology
- Resource Type:
- Video
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Video
In 40 episodes, Hank Green will teach you psychology! This course is based on the 2013 AP Psychology curriculum. By the end of the course, you will be able to: * Understand the biological basis of human behavior and perception * Explain standard models of thinking, learning, and emotions * Recognize rigorous psychological research methods, including ethical considerations * Identify cases of abnormal psychology and associated treatments * Apply psychological theories to social groups
- Course related:
- HTI39103 Radiotheraphy Patient Management
- Subjects:
- Psychology
- Keywords:
- Psychology
- Resource Type:
- Video
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Video
About 10,000 years ago, hunter-gatherers, aided by rudimentary agriculture, moved to semi-permanent villages and never looked back. With further developments came food surpluses, leading to commerce, specialization and, many years later with the Industrial Revolution, the modern city. Vance Kite plots our urban past and how we can expect future cities to adapt to our growing populations.
- Subjects:
- Building Services Engineering and Building and Real Estate
- Keywords:
- Cities towns -- Growth City planning
- Resource Type:
- Video
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Video
Biofuels can provide energy without the reliance on environmentally harmful fossils fuels -- but scientists are still searching for a plentiful source. Craig A. Kohn demonstrates how cellulose, the naturally abundant tough walls of plant cells, might be the solution.
- Subjects:
- Mechanical Engineering, Environmental Engineering, and Chemical and Bioprocess Technology
- Keywords:
- Renewable energy sources Biomass conversion Cellulose -- Biodegradation Biomass energy
- Resource Type:
- Video
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Video
This video introduces basic terminology in cryptography, including what is a ciphertext, plaintext, keys, public key crypto, and private key crypto. This is a video shared via the picoCTF youtube channel. picoCTF is a platform organized by Carnegie Mellon University (“CMU”)
- Subjects:
- Computing
- Keywords:
- Cryptography Data encryption (Computer science)
- Resource Type:
- Video
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Video
In this video we look at how to decide for a given scenario (worded problem) if the distribution described is a Binomial distribution or Poisson distribution and whether its probability distribution function or its cumulative distribution function is required to calculate a specified probability.
- Subjects:
- Mathematics and Statistics
- Keywords:
- Binomial distribution Probabilities Poisson distribution Distribution (Probability theory)
- Resource Type:
- Video
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Video
In this video we look at how to use statistical tables to calculate probabilities in a Binomial distribution. This includes an example of using the table for the probability density function to determine the probability the random variable takes a particular value and an example of using the table for the cumulative distribution function to determine the probability the random variable is less than or equal to a certain value and an example determining the probability it is greater than or equal to a certain value.
- Subjects:
- Mathematics and Statistics
- Keywords:
- Probabilities Poisson distribution Distribution (Probability theory)
- Resource Type:
- Video
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Video
In this video we look at how to use statistical tables to calculate probabilities in a Poisson distribution. This includes an example of using the table for the probability density function to determine the probability the random variable is equal to particular value in a case where the average number of events per interval needs to be adjusted to match the units specified in the question and an example of using the table for the cumulative distribution function to determine the probability the random variable takes a value between two specified numbers.
- Subjects:
- Mathematics and Statistics
- Keywords:
- Binomial distribution Probabilities Distribution (Probability theory)
- Resource Type:
- Video
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Video
In this video we look at how to use statistical tables to calculate probabilities in a Poisson distribution. This includes an example of using the table for the probability density function to determine the probability the random variable is equal to a particular value and an example of using the table for the cumulative distribution function to determine the probability the random variable is less than a certain value and an example determining the probability it is greater than or equal to a certain value.
- Subjects:
- Mathematics and Statistics
- Keywords:
- Probabilities Poisson distribution Distribution (Probability theory)
- Resource Type:
- Video