Professor Roger Jeffery - Population: how much of a problem? <video> 1:10 hrs
[ about compounding growth in money, population, earthly resources, crime statistics, etc. what the mathematical compounding interest means and how to understand the concept. ] [ primarily focuses on the 'doubling' effect after some portion of time ]
The Most IMPORTANT Video You'll Ever See [ all 8 parts - <video> ]
Also. A very good series to watch on youtube..is 'Status Anxiety' by Alain de Botton
[ basically covers the issues of finding ones way to discover having a healthy self knowing outlook on society ] covers topics in history: everything is taken from another group [ via war, economics, etc. ] guiding philosophers [ Marx, Nietzsche, plus others.. ]
http://www.ted.com... Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.
TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery.
TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts.
Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/tr...
Human irrationality and putting in the effort to correct our biases, often said our need for accurate beliefs, is the most pressing need for our species, mentioned in the below video.
TEDxMileHighSalon - Michael Huemer - The Irrationality of Politics
Michael Huemer focuses on the scope and nature of what we know, morality and truth. He is an expert at structuring logical arguments the premises of which are easy to go along with, which makes it annoying if you don't agree with his conclusions. We'll let you decide. In this TEDxMileHigh Talk, he details the irrationality of politics.
In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)
The report argues that immediate action not only makes environmental sense, but also economic sense. If global greenhouse emissions can be made to peak before 2020, a 2° C limit to the increase in world average temperature is possible. This would limit the costs of "adaptation and mitigation," but requires "ambitious decisions" to be taken more or less immediately.
The report sets a specific target of stabilizing atmospheric greenhouse gas concentrations at 450ppm. At this level, studies have put the odds of keeping a global temperature rise under 2° C at between 40 and 60 percent. For this level to be achieved, the report calls for putting a "price on carbon" immediately, while implementing a gradual transformation of the energy sector into a low-carbon industry. Finally, the report calls for a wide implementation of "low-cost advanced technologies" that would be stimulated by the higher cost of fossil fuels, giving the example of bio-energy with carbon capture and storage (BECCS)—a technology which the Royal Society has suggested could decrease atmospheric carbon dioxide concentrations by between 50 and 150ppm.
The OECD additionally proposes phasing out fossil fuel subsidies which it claims amounts to $45 billion-75 billion per year in OECD countries, and over $400 billion per year in developing and emerging economies.
Beyond climate change, the report also highlights a number of other actions to mitigate environmental impacts of population growth, with the need to protect natural habitats perhaps foremost among them. Though it acknowledges that 13 percent of the world's land is protected, it claims that grassland, savanna, and marine environments are underrepresented. The report also calls for an end to environmentally harmful subsidies, including those provided to projects or companies which intensify land (or sea) use for agriculture, bioenergy, fishing, forestry, and transport.
Assistant Professor Presents Scientific Model for Yildiz Magnet Motor 5 JAN 2013 Yesterday, we reported that later this month, a leading European university will be conducting a thorough, academically-rigorous, peer-reviewed, independent, scientific test of Turkish Inventor, Muammer Yildiz' all-magnet motor in an isolated room at the university.
Not only will this provide the validation Yildiz needs to get funding for a patent, but it will open a new scientific revolution.
Probably a scam : Muammer Yildiz magnet motor presentation at Eindhoven TUe in 2009
III. STORED MAGNETIC ENERGY Firstly we should examine the possibility that the delivered mechanical energy could be taken from the magnetizing field stored by the permanent magnets. By considering a total weight of 24kg of all operating Neodymium magnets in the motor – that is 50% of the motor’s weight – a total maximum stored magnetic energy can be calculated to be 0.25Wh, or 15 watts- minutes. Only the mechanical power that keeps the air flow through the tube placed in front of the propellers was already measured to be 10W. Therefore, if the motor runs longer than 2 minutes it is clear that the mechanical energy has not been transferred from the magnetizing energy stored by the magnets. And that was the case. IV. GRAVITATIONAL ENERGY A candidate explanation on how the Yildiz motor runs could come from mainstream physics based on the notorious statement E=mc2. We could speculate that the energy is continuously supplied by reenergizing the spins of the elementary magnets via photon flux from gravitational fields. Otherwise stated, the self-sustained vibrations of the magnets in the motor would somehow resonate with gravitational fields. In order to confirm this possibility, an extremely careful and sensitive experiment should uniquely demonstrate that the weight of the motor reduces during the running process, and that the weight does not change when the motor stops. But that means if the weight is reduced by 1g during the running process, then about 25000MWh need to be converted. Well, this is equivalent to supply uninterruptedly 2kW electricity to more than 1200 households for one full year! Nevertheless, if the motor does not change weight during the experiment, there is another interesting possibility for a candidate energy source as forecast by Quantum field theory.
Zero-point energy is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical systems undergo fluctuations even in their ground state and have an associated zero-point energy, a consequence of their wave-like nature. The uncertainty principle requires every physical system to have a zero-point energy greater than the minimum of its classical potential well. This results in motion even at absolute zero. For example, liquid helium does not freeze under atmospheric pressure at any temperature because of its zero-point energy. The concept of zero-point energy was developed in Germany by Albert Einstein and Otto Stern in 1913, as a corrective term added to a zero-grounded formula developed by Max Planck in 1900. The term zero-point energy originates from the German Nullpunktsenergie. The German name is also spelled Nullpunktenergie (without the "s").
Vacuum energy is the zero-point energy of all the fields in space, which in the Standard Model includes the electromagnetic field, other gauge fields, fermionic fields, and the Higgs field. It is the energy of the vacuum, which in quantum field theory is defined not as empty space but as the ground state of the fields. In cosmology, the vacuum energy is one possible explanation for the cosmological constant. A related term is zero-point field, which is the lowest energy state of a particular field
A magnetic monopole is a hypothetical particle in particle physics that is an isolated magnet with only one magnetic pole (a north pole without a south pole or vice-versa). In more technical terms, a magnetic monopole would have a net "magnetic charge". Modern interest in the concept stems from particle theories, notably the grand unified and superstring theories, which predict their existence.
Magnetism in bar magnets and electromagnets does not arise from magnetic monopoles, and in fact there is no conclusive experimental evidence that magnetic monopoles exist at all in the universe.
Effective (non-isolated) magnetic monopole quasi-particles exist in some condensed matter systems.
vacuum state In quantum field theory, the vacuum state (also called the vacuum) is the quantum state with the lowest possible energy. Generally, it contains no physical particles. Zero-point field is sometimes used as a synonym for the vacuum state of an individual quantized field.
According to present-day understanding of what is called the vacuum state or the quantum vacuum, it is "by no means a simple empty space", and again: "it is a mistake to think of any physical vacuum as some absolutely empty void." According to quantum mechanics, the vacuum state is not truly empty but instead contains fleeting electromagnetic waves and particles that pop into and out of existence.
The QED vacuum of quantum electrodynamics (or QED) was the first vacuum of quantum field theory to be developed. QED originated in the 1930s, and in the late 1940s and early 1950s it was reformulated by Feynman, Tomonaga and Schwinger, who jointly received the Nobel prize for this work in 1965. Today the electromagnetic interactions and the weak interactions are unified in the theory of the electroweak interaction. The Standard Model is a generalization of the QED work to include all the known elementary particles and their interactions (except gravity). Quantum chromodynamics is the portion of the Standard Model that deals with strong interactions, and QCD vacuum is the vacuum of quantum chromodynamics. It is the object of study in the Large Hadron Collider and the Relativistic Heavy Ion Collider, and is related to the so-called vacuum structure of strong interactions.
Ferromagnetism — the simple magnetism of a bar magnet or compass needle — has been known for centuries. In a second type of magnetism, antiferromagnetism, the magnetic fields of the ions within a metal or alloy cancel each other out. In both cases, the materials become magnetic only when cooled below a certain critical temperature. The prediction and discovery of antiferromagnetism — the basis for the read heads in today’s computer hard disks — won Nobel Prizes in physics for Louis Neel in 1970 and for MIT professor emeritus Clifford Shull in 1994.
“We’re showing that there is a third fundamental state for magnetism,” says MIT professor of physics Young Lee. The experimental work showing the existence of this new state, called a quantum spin liquid (QSL), is reported this week in the journal Nature, with Lee as the senior author and Tianheng Han, who earned his PhD in physics at MIT earlier this year, as lead author.
The QSL is a solid crystal, but its magnetic state is described as liquid: Unlike the other two kinds of magnetism, the magnetic orientations of the individual particles within it fluctuate constantly, resembling the constant motion of molecules within a true liquid.
All of us have some sort of "philosophy of life," even though we may not have verbalized it. Here you can get ideas for your own philosophy of life. You can see what others think of your own philosophical ideas, and you can help others to become clearer in their own thinking.
When there is difference of opinion, we have an opportunity for "friendly debate," a very growth-promoting experience.