Ishango bone The Ishango bone is a bone tool, dated to the Upper Paleolithic era. It is a dark brown length of bone, the fibula of a baboon, with a sharp piece of quartz affixed to one end, perhaps for engraving. It was first thought to be a tally stick, as it has a series of what has been interpreted as tally marks carved in three columns running the length of the tool, but some scientists have suggested that the groupings of notches indicate a mathematical understanding that goes beyond counting. It has also been suggested that the scratches might have been to create a better grip on the handle or for some other non-mathematical reason. The Ishango bone was found in 1960 by Belgian Jean de Heinzelin de Braucourt while exploring what was then the Belgian Congo. It was discovered in the African area of Ishango, which was centered near the headwaters of the Nile River at Lake Edward (now on the border between modern-day Uganda and Congo). Possible meaning Mathematical calculations
Out of Body Experiences Out of body experiences (OBEs or OOBEs) involve the vivid sensation of moving outside your physical body and sometimes traveling far beyond it. OBEs are most likely to occur when you are asleep, meditating or practicing wake-induced lucid dream exercises. Indeed, many dream explorers agree that out-of-body phenomena are extensions of the lucid dream experience. Around 1 in 10 people have experienced an OBE at some time in their lives - and some people have them frequently. There are many ways to induce an OBE and we'll look at a practical technique for doing so at the end of this article. The Link Between OBEs and Lucid Dreams Our scientific understanding of the OBE strongly suggests that it is a type of lucid dream. An OBE/WILD begins when you're lying down, ideally having recently woken from a sleep. This can give you the unusual sensation of being "stuck" in your physical body in bed, with the need to free yourself. For step-by-step instructions, see my WILD tutorial. Astral Projection
Time Travel and Modern Physics First published Thu Feb 17, 2000; substantive revision Wed Dec 23, 2009 Time travel has been a staple of science fiction. With the advent of general relativity it has been entertained by serious physicists. But, especially in the philosophy literature, there have been arguments that time travel is inherently paradoxical. The most famous paradox is the grandfather paradox: you travel back in time and kill your grandfather, thereby preventing your own existence. To avoid inconsistency some circumstance will have to occur which makes you fail in this attempt to kill your grandfather. 1. You are very depressed. 2. The standard worry about time travel is that it allows one to go back and kill one's younger self and thereby create paradox. Well, one worry is the question as to why such schemes always fail. 3. Imagine the following set-up. However, it does not take much thought to realize that there is no paradox here. Let us now be more general and allow color photography. Figure 1 Figure 2 4.
70 Things Every Computer Geek Should Know. | Arrow Webzine The term ‘geek’, once used to label a circus freak, has morphed in meaning over the years. What was once an unusual profession transferred into a word indicating social awkwardness. As time has gone on, the word has yet again morphed to indicate a new type of individual: someone who is obsessive over one (or more) particular subjects, whether it be science, photography, electronics, computers, media, or any other field. A geek is one who isn’t satisfied knowing only the surface facts, but instead has a visceral desire to learn everything possible about a particular subject. How to become a real computer Geek? Little known to most, there are many benefits to being a computer geek. You may get the answer here: The Meaning of Technical Acronyms 1. One of the best list of default passwords. 1A. 2. If you rolled your eyes here, that is a good thing. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.
The Difference Between Great Britain, England & the United Kingdom (and a whole lot more) Ready for a geography lesson? If you’ve ever been confused about the difference between the United Kingdom, Great Britain and England, this video by Colin Grey (@cgpgrey) will set you straight in an action packed 5 minutes. His fast talking dialog also covers the commonwealth countries, what it means to be ruled by the crown and more. Click this Venn Diagram by Colin Grey to learn at a slower pace: Source: blog.cgpgrey.com
CRACKED: 6 Things Your Body Does Every Day That Science Can't Explain The human race has scaled the tallest mountains, charted the deepest oceans and played a quick front nine on the freaking moon, but there's one frontier that still largely mystifies us: our own bodies. There are everyday phenomenons you'd think must have been explained ages ago, but in reality asking these simple questions of a scientist will net you at best a shrug, and at worst some bullshit he just made up off the top of his head. The act of yawning is baffling to experts for two reasons. One, it doesn't actually seem to serve any purpose. Seriously, when you feel a yawn coming on, suppress it. What happens? Equally baffling, though, is the contagious nature of it. Odds are you've yawned once just because you read the word "yawn" several times above. Science's Wild-Ass Guess: Your science textbook in elementary school may have said that low oxygen levels in the blood triggered yawning, with the yawn providing a quick influx of the gas. Yeah, a tie, that'll do it. What the hell?
Shortcut When his wife grew ill in the early 1960s, Indian farmhand Dashrath Manjhi took her from their home in Gelaur to the hospital in the neighboring town of Wazirganj. Unfortunately, this meant a journey of 19 kilometers, as a hillock of solid rock lay between the two villages. When he returned to Gelaur, Manjhi resolved to improve matters. When Dasrath died in 2007, the Indian state of Bihar gave him a state funeral. See A for Effort. (Thanks, Jebadiah.) The concerns of a mouse… A mouse looked through the crack in the wall to see the farmer and his wife open a package. “What food might this contain?” The mouse wondered. He was devastated to discover it was a mousetrap. Retreating to the farmyard, the mouse proclaimed this warning : “There is a mousetrap in the house! The chicken clucked and scratched, raised her head and said, “Mr. The mouse turned to the pig and told him, “There is a mousetrap in the house! The pig sympathized, but said, “I am so very sorry, Mr. The mouse turned to the cow and said, “There is a mousetrap in the house! The cow said, “Wow, Mr. So, the mouse returned to the house, head down and dejected, to face the farmer’s mousetrap. … Alone That very night a sound was heard throughout the house – the sound of a mousetrap catching its prey. The farmer’s wife rushed to see what was caught. In the darkness, she did not see it. It was a venomous snake whose tail was caught in the trap. The snake bit the farmer’s wife. The farmer rushed her to the hospital.
RainyMood.com: Rain makes everything better. Gummy Bear In Potassium Chlorate - Science - Science Funny Pictures, Funny Videos, Cool Videos The 5 Strangest Things Evolution Left in Your Body If you don't believe in evolution, you have to spend a lot of time wondering about the useless shit the creator threw into our bodies. Why don't our wisdom teeth fit in our heads? Why do we need an appendix? The answer is that evolution is a sloppy and haphazard process. Take a close look at your body and you'll see some of the leftover junk. Like... There is a little girl standing behind you with dark, sunken eyes and a deadpan expression. Did you feel that slight tingling sensation on the back of your neck? But mostly when scared and 11. They can also appear when we feel sexually aroused or when we feel in awe of something, like listening to a moving piece of music, or if you're the type, watching monster trucks smash smaller cars (to each his own). But Why? Ever see the fur on the back of a scared or angry animal suddenly stand straight up? It's that. Like this. There is really no reason to have this reaction anymore as it's of no use to us. Above: not bear-food. For... um, warmth.
Pictures of Moments Speak More than Thousand Words...... Picture can speak thousands of words. Random pictures of insignificant moments always been the most important and most valuable. Photographers and painters beautifully imprint huge number of events, objects and types. Some do it by accident on the momentary desire. 1. Photographer – Zilvinas Valeika 2. 3. One of the best photos on the version of Red Bull Illume 2010. 4. Little boy is going to ask Santa for his father returns from Iraq. 5. Photographer – Roman Balaev. 6. 7. 8. This picture consists 365 photographs that were made by each day from the same place. via 9. 10. 11. Photographer – Julia Kurbatova. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. Photos of children’s choir from North Korea. 24. 25. 26. 27. 28. 29. 30. 31. The celebration of March 8 in Belgrade. 32. 33. “My 3-year-old son Charlie, – said by the author of the photo Blake Zickefoose, Kid love his friend caterpillar. 34. 35. 36.
Table of contents (With last update date) Cover Foreword (August 13, 2009) Part 1. Preface to part 1 (April 12, 2000) Chapter 1. 1.1. 1.6. 1.7. Chapter 2. 2.1. 2.2. 2.3. 2.4. 2.5. 2.6. Chapter 3. 3.1. 3.2. 3.3. 3.4. Chapter 4. 4.1. 4.2. 4.3. 4.4. Chapter 5. 5.1. 5.2. 5.3. 5.4. 5.5. 5.6. 5.7. 5.8. 5.9. 5.10. 5.11. 5.12. 5.13. 5.14. 5.15. 5.16. Chapter 6. 6.1. 6.2. 6.3. 6.4. 6.5. 6.6. 6.7. 6.8. 6.9. 6.10. 6.12. Part 2. Preface to part 2 (October 17, 2010) Chapter 7. 7.1. 7.2. 7.3. 7.4. 7.5. 7.6. 7.7. 7.9. 7.10. Chapter 8. 8.1. 8.2. Chapter 9. 9.1. 9.2. 9.3. 9.4. 9.6. Chapter 10. 10.1. 10.2. 10.3. 10.4. Chapter 11. 11.1. 11.2. 11.3. 11.4. 11.5. 11.6. 11.7.The victim/victimizer polar pair 11.8. 11.9. 11.10. Chapter 12. 12.1. 12.2. 12.3. 12.5. 12.6. 12.7. Chapter 13. 13.1. 13.2. 13.3. 13.4. 13.5. 13.6. 13.7. 13.8. 13.9. 13.10. 13.11. 13.12. 13.13. Chapter 14. 14.1. 14.2. 14.3. 14.4. 14.5. 14.6. 14.7. 14.8. Chapter 15. Chapter 16. 16.3. 16.4. 16.5. Part 3. Preface to part 3 (November 18, 2009) Chapter 17. 17.1.