How to display the data of your hike? (c)Roman Pohorecki/Pexels
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How can I display a GPX-file?

GPX-files are the files which are created by tracking-apps such as Runtastic. These apps record your GPS-location and therefore can display your altitude, as well as the distance that you moved in a certain period of time. In addition, GPX-files may contain information like your heart rate, which can also be recorded by various devices. It…

"The shortest way to do many things is to do only one thing at once."

Samuel Smiles

What is PechaKucha?
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What is PechaKucha?

PechaKucha was invented in Japan in February 2003 as an event for young designers to meet, network and show the work in public. It includes a modern, very fast form of presentation, in which 20 slides or pictures are shown for 20 seconds each – therefore, one presentation lasts for only 6:40 minutes, which is…

Google (c) Buddyloan.com
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Infographic: What happens in a second on Google’s services?

It’s out of the question that Google has turned into a worldwide internet phenomenon; the company operates the most successful search engine with google.com, the most popular video website (YouTube) and provides Android, the world’s most commonly used operating system for smartphones. This infographic shows you what Google does, while you spend your time on…

"Today, we know 5 percent of what we will know in 50 years. In other words, in 50 years, 95 percent of what we will know will have been discovered in the past 50 years."

Dave Evans, Chief Futurist, Cisco

“If a foreign country can supply us with a commodity cheaper than we ourselves can make it, better buy it of them with some part of the produce of our own industry, employed in a way in which we have some advantage.”

Adam Smith (1776)

“The Stone Age did not end for lack of stone, and the Oil Age will end long before the world runs out of oil.”

Sheikh Ahmed Zaki Yamani, Oil Minister of Saudi Arabia, 1970s.

"Without corrective action, climate change will become irreversible at some tipping point during the twenty-first century. By 2030, food prices could be twice as high as in 2011, and half of the world’s population could be affected by severe water shortages.”

Mauro F. Guillén and Emilio Ontiveros inGlobal Turning Points, page 105.

(c) Wikimedia/Gabriel Ehrnst GRUNDIN
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What does “Respondoj” mean?

The aim of respondoj.com is to give answers. In Esperanto, a constructed language that was invented in 1887 by Ludwik Lejzer Zamenhof, “respondo” means “answer”. If you want to build a plural in Esperanto, you simply add a “j” at the end. Therefore, the Esperanto word for “answers” is “Respondoj”.

Video: Is Matrix-Style learning possible?
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Video: Is Matrix-Style learning possible?

Learning stuff in the style of the hollywood-movie “Matrix” is still science fiction, somehow. However, scientists do conduct experiments on how to train the brain. This video gives you a brief impression on what could be possible in the future. Facebook: https://www.facebook.com/nilfacts Google+: https://plus.google.com/+TheNilFacts/posts Further reading: http://healthland.time.com/2013/12/19/reversing-aging-not-as-crazy-as-you-think/ The aging process: http://health.howstuffworks.com/wellness/aging/aging-process/aging1.htm Mitochondrion: http://en.wikipedia.org/wiki/Mitochondrion Cell nucleus: http://en.wikipedia.org/wiki/Cell_nucleus NAD: http://en.wikipedia.org/wiki/Nicotinamide_adenine_dinucleotide…

Video: What are stem cells?
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Video: What are stem cells?

Is personalized medicine for individual bodies in our future? Craig A. Kohn describes the role of these incredible, transforming cells and how scientists are harnessing their medical potential. Lesson by Craig A. Kohn, animation by Qa’ed Mai. Via TED-Ed. View full lesson: http://ed.ted.com/lessons/what-are-stem-cells-craig-a-kohn

Video: Are Elvish, Klingon, Dothraki and Na’vi real languages?
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Video: Are Elvish, Klingon, Dothraki and Na’vi real languages?

What do Game of Thrones’ Dothraki, Avatar’s Na’vi, Star Trek’s Klingon and LOTR’s Elvish have in common? They are all fantasy constructed languages, or conlangs. Conlangs have all the delicious complexities of real languages: a high volume of words, grammar rules, and room for messiness and evolution. John McWhorter explains why these invented languages captivate…

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Welcome to Respondoj

Have a look at today’s news: There are rumors on the next iPhone, a company announced it’s earnings and it might rain this afternoon… All of this stuff might be interesting for the moment – but the value of the information will be gone in only a few hours, leaving you with nothing but the…

Video: Why is the solar system flat?
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Video: Why is the solar system flat?

Thanks to Embry-Riddle Aeronautical University for supporting us on Subbable.com! – http://prescott.erau.edu A big thanks as well to Subbable supporters The Great Tobini (aka Tobyn Pearson) and Georgi Yanev! You make it possible for us to continue making MinutePhysics Music video – http://youtu.be/ej2KfuiFJ38 What to do When it’s Cold Outside –http://www.youtube.com/watch?v=j3Gs6t… Galaxy simulation by Rob Crain (Leiden)…

"For the first time in human history, several countries have inverted age pyramids with more people above the age 60 than below age 20, more people live in cities than in the countryside, and more people suffer from obesity than from hunger."

-—Mauro F. Guillén and Emilio Ontiveros in Global Turning Points, page 44.

Video: Could Godzilla exist?
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Video: Could Godzilla exist?

WATCH “What’s the Damage?” on Cinema Sins:http://youtu.be/yCLhtqdRoTo SUBSCRIBE: http://bit.ly/1gAEtTd ***CLICK “SHOW MORE” FOR LINKS*** What If? that has human calorie count: https://what-if.xkcd.com/78/ How Big Can a Person Get? by Vsauce1 https://www.youtube.com/watch?v=DkzQx… More footage of Robert Wadlow https://www.youtube.com/watch?v=5McWw… Sauroposeidon http://www.snomnh.ou.edu/learnmore/sa… Publications by Dr. Mike Taylor http://www.miketaylor.org.uk/dino/pub… Godzilla slide by Dr. Mike Taylor http://www.miketaylor.org.uk/dino/pub… TV Tropes entry on…

“The possession of knowledge does not kill the sense of wonder and mystery. There is always more mystery.”

Anaïs Nin

Video: How do trees survive in winter?
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Video: How do trees survive in winter?

Humans can go inside or put on clothes, but trees spend winter naked in the cold. Why don’t they all die? Created by Henry Reich Animation: Ever Salazar Production and Writing Team: Alex Reich, Peter Reich, Emily Elert Music: Nathaniel Schroeder:http://www.soundcloud.com/drschroeder Want to add captions to MinuteEarth videos? – minuteearth.subtitl.us MinuteEarth is available as a…

Source: NASA Goddard Laboratory for Atmospheres
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What are the risks of nuclear fusion?

Accident potential In the magnetic approach, strong fields are developed in coils that are held in place mechanically by the reactor structure. Failure of this structure could release this tension and allow the magnet to “explode” outward. The severity of this event would be similar to any other industrial accident or an MRI machine quench/explosion, and could be…

Source: NASA Goddard Laboratory for Atmospheres
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What is Nuclear fusion?

In nuclear physics, nuclear fusion is a nuclear reaction in which two or more atomic nuclei collide at a very high speed and join to form a new type of atomic nucleus. During this process, mass is not conserved because some of the mass of the fusing nuclei is converted to photons(energy). Fusion is the process that powers active or “main sequence” stars. The…

"Tokyo Stock Exchange: Trading at the Tokyo Stock Exchange reflects Japan's rising level of economic activity." Sep 1, 1950. Source: US Army
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What is insider trading?

Insider trading is the trading of a public company‘s stockor other securities (such as bonds or stock options) by individuals with access to non-public information about the company. In various countries, insider trading based on inside information is illegal. This is because it is seen as unfair to other investors who do not have access to the information. Trading by specific insiders, such…

blackboard-backgrounds-wallpapers
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Who finances Al-Qaeda?

Some financing for al-Qaeda in the 1990s came from the personal wealth of Osama bin Laden.[69] By 2001 Afghanistan had become politically complex and mired. With many financial sources for al-Qaeda, Bin Laden’s financing role may have become comparatively minor. Sources in 2001 could also have included Jamaa Al-Islamiyya and Islamic Jihad, both associated with…

Originally uploaded to English Wikipedia by Glen Larson (en:User:Glenlarson), February 17, 2005.
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What was the Great Depression in Central Europe?

The Great Depression severely affected central Europe. The unemployment rate in Germany, Austria and Poland rose to 20% while output fell by 40%.By November 1932, every European country had increased tariffs or introduced import quotas. Under the Dawes Plan, the German economy boomed in the 1920s, paying reparations and increasing domestic production. Germany’s economy retracted…

Khumbu Icefall - own photograph --Uwe Gille 12:05, 26 Apr 2005 (UTC)
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What can be done to prevent avalanches?

There are several ways to prevent avalanches and lessen their power and destruction; active preventative measures reduce the likelihood and size of avalanches by disrupting the structure of the snowpack; passive measures reinforce and stabilize the snowpack in situ. The simplest active measure is by repeatedly traveling on a snowpack as snow accumulates; this can…

Khumbu Icefall - own photograph --Uwe Gille 12:05, 26 Apr 2005 (UTC)
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How much do Everst guides earn?

An Everest guide typically earns about US$125 per climb. Most come from climbing families, raised on stories of wealth from climbs, and have relatively few other economic opportunities. Between 350 and 450 guides, most of them Sherpas, work each year during the climbing season.[1] A guide can earn up to $5,000 a year, compared to Nepal’s average…

Khumbu Icefall - own photograph --Uwe Gille 12:05, 26 Apr 2005 (UTC)
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What is the world’s highest mountain?

Mount Everest (also known in Nepal as Sagarmatha and in Tibet as Chomolungma) is the Earth‘s highest mountain. Its peak is 8,848 metres (29,029 ft) above sea level[1] and is the 5th furthest point from the centre of the Earth. Its massif includes neighboring peaks Lhotse, 8,516 m (27,940 ft); Nuptse, 7,855 m (25,771 ft) and Changtse, 7,580 m (24,870 ft). In 1856, the Great Trigonometric Survey of India established the first published height of Everest, then known as Peak XV, at 29,002 ft (8,840 m). The current…

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