So we’ve talked a lot in this series about how computers fetch and display data, but how do they make decisions on this data? From spam filters and self-driving cars, to cutting edge medical diagnosis and real-time language translation, there has been an increasing need for our computers to learn from data and apply that knowledge to make predictions and decisions. This is the heart of machine learning which sits inside the more ambitious goal of artificial intelligence. We may be a long way from self-aware computers that think just like us, but with advancements in deep learning and artificial neural networks our computers are becoming more powerful than ever.
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More gravitational waves! Muons! Bose-Einstein condensates in space! Our physics writer Emily Conover discusses what physics enthusiasts have to look forward to in 2017. Read more: https://www.sciencenews.org/article/science-news-writers-look-ahead-2017
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Hurricanes are intense low pressure areas that form over warm ocean waters in the summer and early fall. Their source of energy is water vapor which is evaporated from the ocean surface.
Water vapor is the “fuel” for the hurricanes because it releases the “latent heat of condensation” when it condenses to form clouds and rain, warming the surrounding air. (This heat energy was absorbed by the water vapor when it was evaporated from the warm ocean surface, cooling the ocean in the process.)
Usually, the heat released in this way in tropical thunderstorms is carried away by wind shear, which blows the top off the thunderstorms. But when there is little wind shear, this heat can build up, causing low pressure to form. The low pressure causes wind to begin to spiral inward toward the center of the low.
These winds help to evaporate even more water vapor from the ocean, spiraling inward toward the center, feeding more showers and thunderstorms, and warming the upper atmosphere still more. The showers and thunderstorms where all of this energy is released are usually organized into bands (sometimes called “rainbands” or “feeder bands”), as well as into an “eyewall” encircling the center of the storm. The eyewall is where the strongest winds occur, which encircle the warmest air, in the eye of the hurricane. This warmth in the eye is produced by sinking air, which sinks in response to rising air in the thunderstorms. The winds diminish rapidly moving from the eyewall to the inside of the relatively cloud-free eye, where calm winds can exist. Video Rating: / 5
Learn how giant airstreams high in the sky get trapped sometimes – leading to devastating weather extremes on the ground.
Copyright: Potsdam Institute for Climate Impact Research PIK and Climate Media Factory. This video was supported by the German Research Foundation (DFG) and the German Federal Ministry of Education and Research (BMBF).
PIK research on the subject:
– Evidence for wave resonance as a key mechanism for generating high-amplitude quasi-stationary waves in boreal Summer
– Influence of Anthropogenic Climate Change on Planetary Wave Resonance and Extreme Weather Events
– Summertime Planetary Wave-Resonance in the Northern and Southern Hemisphere
– Record Balkan floods linked to jamming of giant airstreams: https://www.pik-potsdam.de/news/press-releases/record-balkan-floods-linked-to-jamming-of-giant-airstreams
– Trapped atmospheric waves triggered more weather extremes: https://www.pik-potsdam.de/news/press-releases/archive/2014/trapped-atmospheric-waves-triggered-more-weather-extremes
– Cold, hot or dry: Persistent weather extremes associated with decreased storm activity: https://www.pik-potsdam.de/news/press-releases/cold-hot-or-dry-persistent-weather-extremes-associated-with-decreased-storm-activity
– Summer storm weakening leads to more persistent heat extremes: https://www.pik-potsdam.de/news/press-releases/summer-storm-weakening-leads-to-more-persistent-heat-extremes
– Record-breaking heavy rainfall events increased under global warming: https://www.pik-potsdam.de/news/press-releases/record-breaking-heavy-rainfall-events-increased-under-global-warming Video Rating: / 5
Get the FACTS about climate change: http://youtu.be/ffjIyms1BX4
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Last week’s video: Climate Science – What You Need to Know https://www.youtube.com/watch?v=ffjIyms1BX4
Scientists overwhelmingly agree that our climate is changing, Earth is getting warmer, sea levels are rising, and it’s primarily because of humans putting lots of carbon dioxide in the atmosphere. Yet 4 in 10 Americans aren’t convinced
Here’s what psychologists and sociologists have to say about why some people don’t believe in climate science.
“Don’t Even Think About It” by George Marshall: http://amzn.to/1DCX6HU
Also check out George Marshall’s website: http://www.climateconviction.org/
“The Republican Brain” by Chris Mooney: http://bit.ly/1GJew1C
“Unscientific America” by Chris Mooney and Sheril Kirshenbaum: http://amzn.to/1BQsocf
“Fool Me Twice” by Shawn Lawrence Otto: http://bit.ly/12Y2Gnc
Want to learn about the science of climate change and why humans are causing it, but in layman’s terms? I recommend these books:
Climate Change: Evidence and Causes (National Academy of Sciences/Royal Society) FREE ebook: http://amzn.to/1w6itfl
Global Weirdness (Climate Central) http://amzn.to/1BtZZbP
How to Change Minds About Our Changing Climate (Seth Darling + Douglas Sisterson) http://amzn.to/12jjcxN
Have an idea for an episode or an amazing science question you want answered? Leave a comment below!
It’s Okay To Be Smart is written and hosted by Joe Hanson, Ph.D
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Produced by PBS Digital Studios: http://www.youtube.com/user/pbsdigitalstudios
Joe Hanson – Creator/Host/Writer
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Dalton Allen – Post-Production Intern
“Ouroboros” by Kevin MacLeod
Last week’s video:
Climate Science: What You Need To Know https://www.youtube.com/watch?v=ffjIyms1BX4
Building Curiosity https://www.youtube.com/watch?v=__tPaFaPCHo
Why Are Some People Left-Handed? https://www.youtube.com/watch?v=NPvMUpcxPSA
Why Did We Blow on NES Games? https://www.youtube.com/watch?v=4Gf9mtXnJfM
The Science of Game of Thrones – https://www.youtube.com/watch?v=Utu-LpJn3Is
There Was No First Human – https://www.youtube.com/watch?v=xdWLhXi24Mo
How The Elements Got Their Names – https://www.youtube.com/watch?v=mtg9p6A6xnY
Ever wonder what the difference between “global warming” and “climate change” is? The terms are used interchangeably, yet people interpret the terms in different ways. Trace breaks down what the difference is, and talks about how we perceive the terms differently.
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‘Global Warming’ Scarier Than ‘Climate Change,’ Surveys Find
“Americans are more concerned about the changing planet when the words ‘global warming’ are used than when they hear ‘climate change,’ new research finds.”
Americans care deeply about ‘global warming’ – but not ‘climate change’
“Barack Obama, scientists and campaigners have all looked at how to engage Americans more powerfully on the environment. Now researchers have come up with one critical piece of advice: do say ‘global warming’, don’t say ‘climate change’.”
What’s In A Name? Global Warming vs Climate Change
“We found that the term ‘global warming’ is associated with greater public understanding, emotional engagement, and support for personal and national action than the term ‘climate change.'”
What’s In A Name?: Global Warming Versus Climate Change
What attracts people to violent movies?
“Why are audiences attracted to bloodshed, gore and violence? A recent study found that people are more likely to watch movies with gory scenes of violence if they felt there was meaning in confronting violent aspects of real life.”
Humans Crave Violence Just Like Sex
“New research on mice shows the brain processes aggressive behavior as it does other rewards.”
DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won’t find anywhere else! New videos twice daily.
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Physics is a field of science that has an impact on a number of other spheres of life: biology, technology, media, economics, etc. Some people do not even consider, but there are a lot of careers where knowledge of physics is essential. This post is aimed at aiding people having some concerns about profession selection and making them believe in their personal skills. Students should verify some of the occupations mentioned below to realize which career is more suitable for them.
Some occupations that require knowledge in physics
1.In case one is concerned with space as well as earth sciences, he/she should better select one of the following professions, astronomy, geology, or energy fields.
2.Those people who are concerned with learning should link their lives with teaching in various universities and colleges.
“3.Knowledge of physics is necessary for the professions in the engineering area, like chemical, computer, mechanical and others.”
“4.There are certain vacancies in medicine where learners can also demonstrate their physics knowledge. Students can work in the area of radiation protection, diagnostic instrumentation and many others.”
“5.We are sure that communications is the field that many people wish to deal with. There wouldn’t be any video recording, laser technology as well as image analysis innovations if physical knowledge wasn’t used there. “
“6.Industry is considered to be the largest field where physicists can utilize their knowledge for human advantage. “
7.Graduates can also deal with consulting industry, supporting people with some pieces of advice in the field where they are specialists.
“8.Environment is another field where practical application of theoretical knowledge in physics is possible. Isnt it wonderful to have a chance to save the world?”
“9.Students knowledge in physics is extremely important in transportation.”
So, choosing a career where certain specific knowledge is essential, one ought to check various fields to know which area is really essential for him/her.
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Medicine is all about dealing with the healing human ailments. It is both a science as well as art and includes a number of healthcare practices that have evolved over the ages with a view to providing better treatment as well as to prevent various illnesses. At one time, it involved use of practices that were mainly known in the Eastern countries of the world but after it became a science, it was practiced differently, especially in the Western world.
Pharmacy compounding is all about mixing drugs by a person known as a compounding pharmacist who does the mixing in a particular way to suit a patients needs. Often, this step is taken in order to change the very form of medication such as to turn it from solid to liquid and to also remove any ingredients in the medication that can cause an allergic reaction in the patient.
BHRT or Bioidentical hormone replacement therapy is a form of therapy in which hormones are used and which have the same endogenous hormones. It is also a term that refers to pharmacy compounding and blood/saliva testing as well as involves reaching a particular level of hormones (as established through blood/saliva testing) in the human body.
The history of medicine goes back to prehistoric times when herbalism was widely practiced and when parts of animals and use of minerals were also part of such treatment options. In some cases, many of the materials used to treat illnesses were also part of rituals as practiced by shamans and priests and by medicine men.
The earliest recorded instances of use of medicines show that it was in ancient Egypt and in Babylonia and in India that such practices were first used. Classical Chinese medicinal uses as too ancient Greek medications and Roman medicinal practices also go back a long way in time. Imhotep from about third Millennium BC is believed to be the first physician.
Sri Lanka is believed to be the first country to have had a dedicated hospital where patients were treated. In India, the first person to perform surgery was known as Sushruta who performed the earliest known form of plastic surgery.
Hippocrates is considered the father of medicine as he was responsible for laying the foundation of a more rational medicinal approach. The Hippocratic Oath for physicians is still used today and it was Hippocrates who categorized illnesses according to levels of severity including endemic, chronic, acute and epidemic. He was also the first to coin terms such as relapse, and exacerbation and paroxysm and crisis as well as convalescence and peak.
Galen, a Greek physician is believed to be one of the best surgeons of the ancient world and he was responsible for performing some truly amazing operations such as performing surgery on the eyes and the brain.
Today, the practice of medicine has been truly revolutionized and this is because of information science being practiced on a more global scale. Today, medicine is mostly being conducted within a healthcare system and is much more complex than the basic forms that were practiced when it all began.
Administering Medication to animals can be difficult. A bioidentical hormone replacement can help animals by compounding their medication into a cream or ointment. Trust Haber’s, the premier compounding pharmacy Canada.
I’ve made sure that most of these experiments are very easy and include household items. There is one, however, that requires buying things not found in typical homes. Read full article here….http://www.raisingdv.com/easy-science-experiments-amaze-kids/