Beauty and Truth in Mathematics and Science

Wildlife Biologist - Career Spotlight

Wildlife biologists study animals and other wildlife and how they interact with their environment. Learn about what it takes to be a wildlife biologist and how to protect our wildlife.

Conservation Connect:

Find a Wildlife Refuge:

More career information at

Lesson Plan:


2017 MacBook Pro 13 - 1 Month Later!

I have had the 2017 MacBook Pro 13 for about 1 month now and in this video I share with you my 2017 MacBook Pro 1 month later experience. Then intentions of this video is to give you information and my experience to help you get another look at this device before you think about purchasing it for yourself. Any questions, comments, concerns, suggestions, feedback, please be sure to go ahead and comment them below in the comment section of this video. As always, thank you for watching and be sure to be well and peace :)

Purchase this computer here:


Check out my YouTube Kits here:

Let's Connect!!


Spy Technology - Documentary

Most Bizarre Things In The Universe - Documentary

Deepest Part of The Oceans - Full Documentary HD

Measuring the Greatest Ocean Depth
The Challenger Deep in the Mariana Trench is the deepest known point in Earth's oceans. In 2010 the United States Center for Coastal & Ocean Mapping measured the depth of the Challenger Deep at 10,994 meters (36,070 feet) below sea level with an estimated vertical accuracy of ± 40 meters. If Mount Everest, the highest mountain on Earth, were placed at this location it would be covered by over one mile of water.

The first depth measurements in the Mariana Trench were made by the British survey ship HMS Challenger, which was used by the Royal Navy in 1875 to conduct research in the trench. The greatest depth that they recorded at that time was 8,184 meters (26,850 feet).

In 1951, another Royal Navy vessel, also named the HMS Challenger, returned to the area for additional measurements. They discovered an even deeper location with a depth of 10,900 meters (35,760 feet) determined by echo sounding. The Challenger Deep was named after the Royal Navy vessel that made these measurements.

In 2009, sonar mapping done by researchers aboard the RV Kilo Moana, operated by the University of Hawaii, determined the depth to be 10,971 meters (35,994 feet) with a potential error of ± 22 meters. The most recent measurement, done in 2010, is the 10,994 meter ( ± 40 meter accuracy) depth reported at the top of this article, measured by the United States Center for Coastal & Ocean Mapping.

Great Hassan Nisaar Discussing on Future of Pakistan with Hilaali ---- Must Watch.

Great Hassan Nisaar Discussing on Future of Pakistan with Hilaali ---- Must Watch.


Siberian Tigers Part 2 . NatGeo Wild 2017

Siberian Tigers Part 2 . NatGeo Wild 2017

मुंबई रेलवे 2 | MUMBAI RAILWAY Part 2 | Discovery हिंदी Documentary

This Is Discovery Documentary About Mumbai Railway .

the king shook the head of a chess maker, he was surprised to hear the incident.

this video about : When the king shook the head of a chess maker, he was surprised to hear the incident.

Econometrics // Lecture 1: Introduction

This is an introduction to econometrics tutorial. This video is a basic overview and touches on each of these subjects:

1. What is Econometrics?
2. Goals of Econometrics
3. Types of Economic Data
4. The Simple Linear Regression (SLR)
5. Causality

This lecture on econometric theory is meant to introduce the student to the concepts of econometrics, as well as provide a basic overview of what the topic of econometrics encompasses.

The next video tutorial on simple linear regressions:

Follow us on Twitter @

All video, images, commentary and music is owned by Keynes Academy.

Why can't we fly a plane into space ?

Why can’t we fly a plane in to space, what stops it from just flying higher and higher until we are in space?

You can now translate this and other curious droid videos, see my video about it here

The Curious Droid merchandise shop is now open too on Teespring :

Well, there a several issues but assuming we are in something like a normal jet airliner, then one of the main problems is the air, or lack of it as we get closer to space.
A plane flies because as it is propelled forward, the wings, which are shaped to make the air flow faster over the top of them than the bottom, generate lift. As the plane goes faster the wings creates more lift and when the lift is greater than the weight of the plane, it will climb up in to the air.
For our plane to continue to climb it needs more speed to increase the lift. If you throttle back on the speed a bit, the plane will settle in to level flight and if you decrease the speed the plane will start to fall as lift from the wings is not enough to overcome the weight of the plane.
As our plane climbs higher and higher in to the atmosphere, the air becomes less and less dense, so the plane has to fly faster to create more lift until eventually it reaches an altitude where the engines cease to function correctly because of the lack of oxygen or the air is too thin to create enough lift.
Now, This is a greatly simplified way of looking at this because as you approach the speed of sound or Mach 1, which also changes with altitude and if your plane has quite straight wings, the airflow over the wing can become unstable and it loses li ft. This unstable airflow can also shake the control surfaces, that’s the flaps on the wings that go up and down, so violently it could break them and you then lose control of the plane. That’s why supersonic or hypersonic planes have highly swept back and often delta shaped wings like Concorde and the space shuttle.

Just as we need air to breath, so the engines need oxygen to burn the fuel to create thrust to propel the plane forward.
Jet Engine however can work at higher altitudes than people. We humans have a limit of about 8000 meters or around 26,000 feet, above this is what climbers call the “death zone” where there is not oxygen for humans to survive for sustained periods.
The summit of Mount Everest is 29,000 feet high and the air density there is about 33% of that at sea level. This means that with each breath you take, you are getting only 33% of the oxygen.

Title: TimeTrain
Author: P C III
License: Creative Commons Attribution 4.0



As you know, people are very interested in magic and other seemingly inexplicable phenomena. Since ancient times, magicians have been playing with logic and tricking people to believe in the impossible. And, as you might know, magicians don't like when their tricks are somehow explained. Nevertheless, we are very interested in revealing the best kept magical secrets and understand how magicians do their tricks. Are you also interested? You probably are! So today we have for you 7 tricks and their explanations… it seems is not too hard to be a magician after all

How Important is Math to Software Engineering?

In today's video I want to give a couple of examples where math comes up in Software Development and Engineering. I also want to do a follow up video on what software developers focus on in their day-to-day lives. Stay tuned for that.

Facebook Group

iOS Basic Training Course

Follow me on Twitter:

6. Arguments for the existence of the soul, Part IV; Plato, Part I

Death (PHIL 176)

The lecture begins with a continued discussion of the Cartesian argument and its weaknesses. The lecture then turns to Plato's metaphysical views in the context of his work, Phaedo. The key point in the discussion is the idea that in addition to the ordinary empirical world that we are familiar with, we posit the existence of a second realm in which the Platonic forms exist. These forms are the abstract properties that we attribute to physical objects, such as beauty, justice, goodness and so on. Since it is the soul that conceives of these Platonic forms and ideas, Plato argues that the soul not only outlives the body but lasts forever. It is perfect, immaterial and indestructible.

00:00 - Chapter 1. Summary of the Cartesian Argument
04:57 - Chapter 2. Refuting the Cartesian Argument: The Morning and Evening Stars
19:25 - Chapter 3. Platonic Forms and the Immortality of the Soul
31:27 - Chapter 4. Conclusion

Complete course materials are available at the Yale Online website:

This course was recorded in Spring 2007.

Where Conspiracy Theories Come From and Why People Believe in Them (1998)

A conspiracy theory is an explanatory proposition that accuses two or more persons, a group, or an organization of having caused or covered up, through secret planning and deliberate action, an illegal or harmful event or situation.

Some scholars suggest that people formulate conspiracy theories to explain, for example, power relations in social groups and the existence of evil forces. It has been suggested by some thinkers that conspiracy theories have chiefly psychological or socio-political origins. Proposed psychological origins include projection; the personal need to explain “a significant event [with] a significant cause; and the product of various kinds and stages of thought disorder, such as paranoid disposition, ranging in severity to diagnosable mental illnesses. Similarly, socio-political origins may be discovered in the need of people to believe in event causation rather than suffer the insecurity of a random world and universe.

The effects of a world view that places conspiracy theories centrally in the unfolding of history have been debated, with some saying that it has become “the dominant paradigm of political action in the public mind. Although the term conspiracy theory has acquired a derogatory meaning over time and is often used to dismiss or ridicule beliefs in conspiracies, it has also continued to be used by some to refer to actual, proven conspiracies, such as U.S. President Richard Nixon and his aides conspiring to cover up Watergate.

Belief in conspiracy theories has become a topic of interest for sociologists, psychologists, and experts in folklore since at least the 1960s, when a number of conspiracy theories arose regarding the assassination of U.S. President John F. Kennedy. Sociologist Turkay Salim Nefes underlines the political nature of conspiracy theories and suggests that one of the most important characteristics of these accounts is their attempt to unveil the real but hidden power relations in social groups.

The political scientist Michael Barkun, discussing the usage of this term in contemporary American culture, holds that a conspiracy theory is a belief which explains an event as the result of a secret plot by exceptionally powerful and cunning conspirators to achieve a malevolent end.[4][5] According to Barkun, the appeal of conspiracism is threefold: First, conspiracy theories claim to explain what institutional analysis cannot. They appear to make sense out of a world that is otherwise confusing. Second, they do so in an appealingly simple way, by dividing the world sharply between the forces of light, and the forces of darkness. They trace all evil back to a single source, the conspirators and their agents. Third, conspiracy theories are often presented as special, secret knowledge unknown or unappreciated by others. For conspiracy theorists, the masses are a brainwashed herd, while the conspiracy theorists in the know can congratulate themselves on penetrating the plotters' deceptions.[5]

In his essay Dealing with Middle Eastern Conspiracy Theories, Daniel Pipes notes that conspiracy theories are outstandingly common in the Middle East and writes that five assumptions distinguish the conspiracy theorist from more conventional patterns of thought: appearances deceive; conspiracies drive history; nothing is haphazard; the enemy always gains; power, fame, money, and sex account for all.

Noam Chomsky contrasts conspiracy theory as more or less the opposite of institutional analysis, which focuses mostly on the public, long-term behavior of publicly known institutions, as recorded in, for example, scholarly documents or mainstream media reports, rather than secretive coalitions of individuals.

Barkun (discussed above) has categorized, in ascending order of breadth, the types of conspiracy theories as follows:

Event conspiracy theories. The conspiracy is held to be responsible for a limited, discrete event or set of events. The conspiratorial forces are alleged to have focused their energies on a limited, well-defined objective. The best-known example in the recent past is the Kennedy assassination conspiracy literature, though similar material exists concerning the September 11 attacks, the crash of TWA Flight 800, and the spread of AIDS in the black community.[4]

Systemic conspiracy theories. The conspiracy is believed to have broad goals, usually conceived as securing control of a country, a region, or even the entire world. While the goals are sweeping, the conspiratorial machinery is generally simple: a single, evil organization implements a plan to infiltrate and subvert existing institutions. This is a common scenario in conspiracy theories that focus on the alleged machinations of Jews, Freemasons, or the Catholic Church, as well as theories centered on Communism or international capitalists.

Documentary Films: The Strangest Animals in the World in Australia National Geographic Documentary

Don’t forget to subscribe our channel for more awesome videos, Try to follow us on social media, we’re here 7/24 , happy to serve you:
Here we will bring you the Best Documentary Films. You can watch top class Documentaries from National Geographic Documentaries.

Australia is a major nation with a wide range of creature living spaces. Australia's deserts, rainforests, reefs, swamps, bushlands and mountains give homes to various sorts of creature.

A considerable lot of Australia's creatures are endemic to the nation. This implies they are just found in Australia, and no place else on Earth.

The primary explanation behind this is on account of Australia is encompassed via ocean, and far from anyplace else. Numerous Australian creatures have developed all alone, and haven't possessed the capacity to spread to different parts of the world.

Australia is especially notable for its marsupials,

Marsupials are warm blooded animals whose youthful – known as joeys – are brought up in extraordinary pockets in the mother's body. In spite of the fact that marsupials are likewise present in the Americas, there are numerous more species found in Australia.

Read and watch out more on these sources:

Scarce and Exotic Birds, Which Appear and Disappear Suddenly- Birds documentary

Snake Documentary Films 2016 :The Most Beautiful Snakes on the World

Documentary Films: the Most Huge Jelly fish in the World - National Geographic

Documentary Films: the Most Huge Jelly fish in the World - National Geographic

Documentary Films: Australia's Deadliest Shark Coast - National Geographic Documentary

Documentary Films: The BEST of Dinosaurs - National Geographic Documentary

Documentary Films: Lion vs Buffalo Lions - National Geographic Documentary

The Amazing Eagle - Eagle VS Baby, Rabbit, Snake, Lion, Human, Birds,
Goat, Dog ,Wolf, Fish

Find out more about documentary and documentaries
also documentaries 2015 on our channel that share videos from bbc documentary, national geographic,pds documentary, You can also read: Keyword,Documentary,documentaries,national geographic,bbc documentary.
african animals documentary national geographic
extinct animals documentary

Interesting Result In Maths ( Paradox )

Like Rajesh Choudhary sir on Facebook

Please Like ATP Academy on Facebook

Psychology and Conspiracy Theories: Prof Chris French and Rob Brotherton's on Conspiracy Mind

This lecture presents the latest research from Psychology on the personality traits and cognitive features of conspiracy theorists by Prof Chris French - Director of the Center for Anamolistic Phenomena at the University of London.
For Skepticism, Conspiracy Theories, Atheism, Social Science & Analytic Philosophy see



60 Second Adventures in Economics (combined)

TELL US WHAT YOU THINK and help us improve our Free Educational Resources

For more like this subscribe to the Open University channel

Free learning from The Open University


Ever shaken an invisible hand? Been flattened by a falling market? Or wondered what took the bend out of Phillips' curve? David Mitchell helps reveal some of the great dilemmas faced by governments trying to run an economy - whether to save or spend, control inflation, regulate trade, fix exchange rates, or just leave everyone to get on with it and not intervene. You'll learn why Adam Smith put such a high price on free markets, how Keynes found a bold new way to reduce unemployment, and what economists went on to discover about the impact of policy on people's and businesses' behaviour - which may not always be entirely rational.

Playlist link -


Study economics with the OU



Check Also