The Advent of Parallax Distance to Measure Immense Distances in Space


Stellar parallax is a measurement technique developed by Friedrich Bessel to measure far away objects in deep space. The process of stellar parallax involves measuring an object from two separate vantage points hinging upon the fact that the object being observed will appear to move a lot more than objects further behind it (e.g. if an observer closes one eye and views their finger in front of a building, and then repeats this act with their second eye closed and the first eye open, the observers finger will appear as though it has moved much further left or right, relative to the other objects behind it). Because Bessel developed a method of calculation to take advantage of this phenomena, astronomers now have the ability to map grand distances with relative accuracy. Bessel worked out that if an observer took an image of a star when the Earth was at either side of its orbit around the sun, it would be possible to observe the star shifting in its position. By knowing how much a star shifts, it is possible to calculate the distance the star is from its observation point on Earth. Bessel surmised that the relatively close star 61 Cygni must be 100,000,000,000,000 (100 trillion) kilometers away from the Earth because of his parallax distance method. This technique unfortunately is severely limited as the diameter of the Earth’s orbit is only 300,000,000 (300 million) kilometers which means that the parallax method can only measure objects up to a factor of 1,000,000x (1 million) the Earths orbital rotation, allowing for a maximum distance of 300,000,000,000,000 (300 trillion) kilometers which is only a tiny fraction of the size of the Milky Way Galaxy or the universe as a whole

The Reason Why Brazilian Jiu Jitsu is Practiced World Wide


Brazilian jiu jitsu is the only martial art in which differing styles are encouraged. With karate, taekwondo, judo etc., instructors expect students to learn the techniques provided and to memorize them so that they become reflex. Brazilian jiu jitsu teaches students the fundamentals of the sport but also encourages active experimentation so that new techniques and forms can emerge. This has caused jiu jitsu to become world renowned as the style of choice for many mixed martial arts fighters because of its versatility and application across various different fighting styles. The term “jiu jitsu” means “gentle skill” in Japanese, despite the athletic pursuit technically being a Korean fighting style, and is derived from the Japanese term “jū” which means “gentle” in Japanese and the term “jutsu” which means “skill” in Japanese

The Etymology of Guatemala and Traditional Guatemalan Fishing Techniques


The term “Guatemala” comes from the Nahuatl term “Cuauhtēmallān” which means “place of many trees”, a derivative of the K’iche’ Mayan language term for “many trees”. In Guatemala, those who fish commonly do so by using a technique not seen in many other places. People who fish slap the water with the horizontal edge of their machete to stun fish who are swimming nearby. Once stunned, the fish is caught and brought out of the water so that it can be cleaned and consumed

18th Century Crowd Wrangling During Theatrical Shows


18th century music would often open with a strong fanfare of a few short notes, as there was no electricity during this period and therefore theater show lights could not be dimmed down to signal the beginning of a theatrical show. Wolfgang Amadeus Mozart particularly enjoyed using this technique as he felt it was a robust way to open his symphonies. During the 18th century, it was not uncommon for people to chat and drink during a performance, even moving between seats if they saw somebody they knew so that a conversation could be started