Sunday, December 25, 2011

From Dynasty to Destiny: Ten Celebrated Inventions of Ancient China

!±8± From Dynasty to Destiny: Ten Celebrated Inventions of Ancient China

In the last two centuries, new cultural discoveries have nearly rewritten history. It's been an exciting time, full of adventure and surprises. Around every corner there are new responses to questions we had already imagined answered. And of these breakthroughs, none shines as brightly as the impact of ancient Chinese inventions on modern life. As we explore ten of the greatest inventions and innovations of Ancient China, you may be surprised at their influence on recent technology.

1. Paper. Paper, as we know it, was invented in China around the year 105. After seeing earlier attempts made from silk, bamboo sticks and animal skins, Cai Lun came up with his own idea. After mixing mulberry bark, rags, wheat stalks and other stuff, a pulp formed. This pulp was pressed into sheets and dried, becoming a crude form of paper. Paper was such an important invention that the process of making it was a jealously guarded secret. The secret was safe until the seventh century when the art spread to India.

2. The Printing Press. Before Johann Gutenberg "invented" the printing press in the 1440's, China created a type of printing press between 206 B.C. and A.D. 45. It was made using stone tablets to create a "rubbing" of famous Buddhist and Confucian texts. Next came block printing in the Sui Dynasty. In block printing, images and words were engraved on wooden boards, smeared with ink and pressed onto sheets of paper. Later, moveable type printing presses were introduced. According to the authors of Ancient Inventions, "By A.D. 1000, paged books in the modern style had replaced scrolls - a good 450 years ahead of Gutenberg."

3. The First Book. Due to the early advent of the printing press, China also claims the first book. In 868, almost six hundred years before the Gutenberg Bible, the earliest known book was printed. By the end of the Tang dynasty, China had bookstores in almost every city.

4. Paper Money. While today you'd rather carry a lot of cash instead of coin, that hasn't always been the case. The idea of paper currency was first attempted under Emperor Han Wu-Ti (140-87 B.C.) after war had drained the treasury. He issued treasury notes, worth and in exchange for 400,000 copper coins. Instead of paper, the Emperor used the skin of the white stag. But the creature was so rare that the idea soon lost appeal. In the early 800's, the idea revived to deter highway robbers. In 812, the government was again printing money. By the year 1023, money had an expiration date and was already plagued by inflation and counterfeiting. Nearly six hundred years later paper money headed west, first printed in Sweden in 1601.

5. The Abacus. Well before Texas Instruments, the first calculator was in the works. The abacus dates from around the year 200 B.C. It is a very advanced tool with a simple design. Wood is crafted into a rectangular frame with rods running from base to top. About 2/3's from the base, a divider crosses the frame, known as the counting bar. On each of the rods are beads. All of the beads above the counting bar equal five. Those below equal one. The rows of rods are read from right to left. The furthest bar to the right holds the one's place, the next holds the ten's place, then the hundred's, and so on. While its design may sound complex, there are some Chinese today so skilled that they can solve difficult math problems faster than someone using a calculator!

6. The Decimal System. In the West, the decimal system appeared quite recently. Its first believed instance was in a Spanish manuscript dated around 976. But, the first true example goes back much further. In China, an inscription dated from the 13th century B.C., "547 days" was written as "five hundred plus four decades plus seven of days." The Chinese likely created the decimal system because their language depended on characters (like pictures) instead of an alphabet. Each number had its own unique character. Without the decimal system, the Chinese would have had a terrible time memorizing all of these new characters. By using units of ones, tens, hundreds, etc., the Chinese saved time and trouble.

7. The Mechanical Clock. In the year 732, a Buddhist monk and mathematician invented the first mechanical clock. He named it "Water-Driven Spherical Bird's-Eye-View Map of the Heavens." Like earlier clocks, water gave it power, but machinery cased the movement. But, after a few years, corrosion and freezing temperatures took their toll. It wasn't until 1090, when astronomer Su Sung designed his mechanical marvel "Cosmic Engine", that a more dependable timepiece was made. Created for Emperor Ying Zong, this clock had a tower over 30 feet tall. It housed machinery that, among other things, caused wooden puppets to pop from one of five doors at regular intervals throughout the day. (Much like the modern idea of a Cuckoo clock.) The entire machine was powered by a giant waterwheel. This clock ran until 1126, when it was dismantled by the conquering Tartars and moved to Peking for another several years. The first clock reference in Western history was in 1335, in the church of St. Gothard in Milan.

8. The Planetarium. A planetarium is a big enclosed space that shows the stars and constellations on the inside. Orbitoscope was the name of the first projection planetarium. It was built in Basil in 1912 by Professor E. Hinderman. But, once again, China is the mother of this invention. The first planetarium is attributed to the design of an early emperor. As one source states, an astronomer named Jamaluddin created a planetarium during the Yuan Dynasty (1271-1368), along with a perpetual calendar and other important astronomical devices.

9. The Earthquake Sensor. The earliest earthquake sensor was also an interesting piece of art. It was a bronze cylinder about 8 feet around, with 8 dragons perched above 8 open-mouthed frogs. In the mouth of each dragon rested a bronze ball. When an earthquake struck, a pendulum inside the cylinder would swing. It knocked the ball from the mouth of the dragon and down into the frog's mouth. That frog's back was then facing the direction of the center of the quake. Chang Heng invented it in A.D. 132 (during the Han Dynasty), almost 600 years before the first western sensor was made in France. Later, in 1939, Imamura Akitsune recreated the invention and actually proved it effective.

10. The Helicopter Rotor & Propeller. While the Ancient Chinese didn't actually invent the helicopter, they were involved in its creation. In the 4th century A.D., they invented a toy called the "Bamboo Dragonfly". You've probably seen them as prizes at local fairs or carnivals. It was a toy top, with a base like a pencil and a small helicopter-like blade at the end. The top was wrapped with a cord. When you pulled the cord, the blade would spin around and soar into the air. This toy was studied by Sir George Cayley in 1809 and played a role in the birth of modern aviation. It wasn't until the early 1900's that the first helicopter took flight.

It is sometimes a mind blowing thing to realize that what seemed to be modern ideas or inventions are much older than we'd imagined. And it's likely that there are more inventions to be discovered. More historical changes to be made. In the conclusion of The Greatest Inventions of the Past 2,000 Years, Jared Diamond summed it up well while referring to the changing view of history and its inventors, "So, forget those stories about genius inventors who perceived a need of society, solved it single-handedly, and thereby transformed the world. There has never been such a genius........If Gutenberg hadn't devised the better alloys and inks used in early printing, some other contemporary tinkerer with metals and oils would have done so......do give Gutenberg some of the credit---but not too much."

Questions:

1. Choose one of the inventions mentioned. Explain how different the world would be if it hadn't been invented.

2. Why do you think there was such a large space of time between the Eastern and Western dates of invention?

3. What are two other inventions that came from ancient China? Research and find out when the idea was introduced to Western culture.


From Dynasty to Destiny: Ten Celebrated Inventions of Ancient China

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Tuesday, December 20, 2011

UT ASME EWEEK Task 5

A Royal Flush of TI calculators. photo verification necessary, this picture to include one example of every vintage of TI calculator from TI-82 to TI-89 Titanium, and all major models in-between. ie TI 89 not equal to TI-89 titanium. 5 points for the royal flush occurring at a bar on sixth.

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Thursday, December 15, 2011

College Students - Why a Good Graphing Calculator?

!±8± College Students - Why a Good Graphing Calculator?

The benefits of Graphing calculators

Graphing Calculators have assisted professional engineers and scientists since their invention. By the mid 80's calculators had replaced abacuses in the pockets of professionals, offering transportable and easy computation and manipulation of data.

Many students don't realize how beneficial a calculator is in math courses. Graphing calculators are recommended for math courses from pre-algebra onward, and college programs involving physics, calculus or statistics often require a graphing calculator. Successful high schools are offering class sets or requiring students to purchase a good quality calculator, so that students can familiarize themselves with the tool. Students can use the easy computation and manipulation of a quality calculator during their Sat, Act, or AP placement tests to enhance their calculus abilities.

Graphing calculators are similar to a laptop computer in many aspects, but are much lighter and less expensive. Calculators with graphing capapbility hold many types of data in the on board memory, including gathered statistics, games, notes, and mathematical functions. Manufacturers offer free software that can be used on the calculators they produce, from games programs to advanced tools that enhance calculus abilities. Calculators are equipped with a larger screen than a standard calculator that users to see a visual representation of the work, and they display charts and graphs of data that users can easily manipulate. Calculator data can be saved to other graphing calculators or input in computer programs. Calculators perform complex mathematical functions that standard laptops don't without additional software.

Good calculators are an invaluable tool for today's students because they offer easy computation and manipulation of data, a significantly wider range of functions than standard calculators, and are less expensive than a laptop. Users can define their own formulas and inputs that enhance the calculator with increased calculus abilities, making them a necessary tool for college-bound students.


College Students - Why a Good Graphing Calculator?

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Saturday, December 10, 2011

The Top 6 Calculator Apps For the iPhone

!±8± The Top 6 Calculator Apps For the iPhone

Our recent article on the top 6 calculator apps for Android was a big hit, and since then we've been getting search inquiries about iOS. You asked for it, and we are delivering. We've searched out Apple's app store for our favorite 6 calculator apps for the iPhone and iPod touch. Since there was a wide disparity in cost of apps, we set the ground rule that we were searching for apps that cost less than . In fact, this list turned out to be our favorite 6 iPhone calculator apps for under .

#1 Graphing Calculator+ by xNeat.com

Graphing Calculator+ is our pick for the best all around iPhone calculator app. It greatest strength is that it does so many different things well. A switch button takes you easily between the calculators different modes. Those modes are graphing, scientific, handwriting, a polynomial calculator, and linear equations calculator. There's still room for improvement. In particular, we wish the scientific calculator had fractions, and that the grapher had trace. But the app is simple and powerful, and the fact that it automatically finds max, min, intercepts, and intersection points pretty much makes up for the lack of trace.

Pros: Handwriting support, graphing scientific, quadratic and cubic solver, systems of linear equations

Cons: Handwriting mode not always accurate, decimals only

Cost: .99

#2 Graphicus by Serafim Chekalkin

We are huge fans of Graphicus. If only every graphing calculator were this easy to use. No need to read the user manual here, just jump right in. Graphicus brings you almost all the information you could want about Cartesian, polar, and parametrics graphs in an incredibly elegant interface. Trace, extrema, inflection points, tangent lines are all readily available with a few taps of your finger. On the downside, there is no simple scientific calculator. It's also a minor bummer that there's no 3D in an app that's 100% focused on graphing, but there's only one app on this list that has 3D.

Pros: Offers everything graphical, intercepts, trace, inflection points, max/min, complete

Cons: Just a grapher

Cost: .99

#3 Symbolic Calculator by Janos Barkai

If you need a CAS for your iPhone, this is the app for you. For those who have used a TI-89, you'll feel right at home with with Symbolic Calculator. The focus of this app is it's computer algebra system, and the interface is pretty easy to use for those familiar with Texas Instrument's CAS calculators. If you're new to CAS's, just tap the question mark next to a given command, and an example will pop up demonstrating how to use the syntax appropriately. You can also use this app to graph, although it feels a little counter-intuitive until you get the hang of it, and the graphing features are simplistic compared to some of the other apps on this list.

Pros: For a CAS, simple to use, offers example input for each

Cons: Graphing could be nicer, mathprint only after inputting

Cost: $.99

#4 Graph It by Tezmo

Another excellent grapher is Graph It. This is also full featured grapher, which offers the ability to trace, find intercepts, and roots, as well as graph derivatives and integrals. It also offers a full scientific calculator with two-line display. The user interface is ok, but might take some getting used to for some users, particularly for the scientific calculator mode.

Pros: Full featured grapher, also a full scientific calculator

Cons: UI takes a little getting used to

Cost: $.99

#5 Quick graph by Columbiamug

For those in need of a 3D graphing app, Quick Graph is the way to go. There are other positives here too such as a strong user interface, simple to use polar coordinates,and a good 2D graphing interface. Screen caps are another built in feature. The real selling point, though, is the 3D, which is well rendered and even accepts cylindrical and spherical coordinates. It is possible to use this app as a scientific calculator, but the interface feels a little strange.

Pros: Polar and 3D, screen caps of graphs

Cons: No trace features, don't feel designed for non-graphing calculation

Cost: Free

#6 Powerone LE by Infinity Softworks

Not everyone is looking for a fancy grapher. For those looking for a more standard scientific calculator, Powerone LE fits the bill. It's got a very intuitive interface that you'll pick up right away. Powereone also features unit conversion and a currency converter that stays current to international currency exchange rates. Additionally, its got a simple statistics calculator that finds the mean of a series of numbers. It could be better if the scientific features used a two-line interface.

Pros: Easy to use, nice UI, currency/unit converter, stays current, simple statistical analysis

Cons: One line calculation, no graphing

Cost: Free with option to upgrade to more powerful version for .99


The Top 6 Calculator Apps For the iPhone

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Monday, December 5, 2011

Texas Instruments 89TVSC/CBX/1L1/A TI89TITANIUM Viewscreen Calculator

!±8± Texas Instruments 89TVSC/CBX/1L1/A TI89TITANIUM Viewscreen Calculator

Brand : Texas Instruments | Rate : | Price : $0.00
Post Date : Dec 05, 2011 22:43:41 | Usually ships in 24 hours

Texas Instruments Instruments ViewScreen TI-89 Titanium Overhead Calculator 89TVSC/CBX/1L1/A Calculators reaches speeds of over 300MB/s Superior Specs – Powered by an Intel Core 2 Duo processor & featuring 4GB of high-speed DDR2 memory Ready for the Future – PCI-e slot.

  • Breakthrough Performance - unprecedented data performance, reaching speeds of over 300MB/s
  • Superior Specs - Powered by an Intel Core 2 Duo processor & featuring 4GB of high-speed DDR2 memory
  • Ready For the Future - PCI-e slot; Add optional 10Gb Ethernet adaptor for blazing performance
  • Unique Dual DOM Design - equipped with a dual Disk On Module (DOM)
  • Maximum Flexibility & Expansion - storage expansion with its stackable feature.
  • Connect up to 5 N7700PROs. SCSI ready & support for multiple file systems including Ext3, XFS & ZFS

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Thursday, December 1, 2011

online basic ti-83 calculator tutorial

This tutorial is to show you how to download the ti-83 virtual calculator for your computer. Here is the link in the video: education.ti.com Please following the instructions in the video to make sure you have correctly set up the calculator. Have fun!

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Friday, November 25, 2011

How to Use Shopping Websites to Help Your Affiliate Commissions

!±8± How to Use Shopping Websites to Help Your Affiliate Commissions

What the heck is shopping.com? Well it's one of the largest online shopping networks available, and you can use them to help increase your affiliate commissions. When you go to shopping.com if you scroll down to the bottom of the page you will see a link called "Top Searches" this will tell you exactly what people are typing in to find products and spend their money. For our example we are going to use the calculator category.

So if we click on calculator we find that the number 1 keyword people are searching for when looking for calculators is calculators, no surprise there, but going down the list you find terms like ti 89, Texas instruments 89 calculators, etc. Now Basically this is a keyword list that you can use to promote calculators, if there is an affiliate program for calculators, you can get hooked up with them and start advertising.

Another way to use shopping.com, is find a popular term and find a similar product to sell that audience, because usually people who are interested in calculators are interested in calculator cases, or whatever. You can find related products to sell this market. Don't just think direct marketing, think relation marketing.

If you do these things, and find good products, and good related products you can make a good amount of money, just by giving people what they are looking for. One last tip, don't ever hard sale, its wasting time, build a relationship with the consumer, offer real value, then ask them to make a purchase.


How to Use Shopping Websites to Help Your Affiliate Commissions

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Tuesday, November 22, 2011

Texas Instruments TI-89 Advanced Graphing Calculator

!±8±Texas Instruments TI-89 Advanced Graphing Calculator

Brand : Texas Instruments
Rate :
Price : $170.99
Post Date : Nov 22, 2011 10:16:52
Usually ships in 2-3 business days



Introducing TI's most powerful graphing calculator: The TI-89 Titanium, offering new features, preloaded Apps, and even more versatility. A built-in USB port makes data transfer ultra-convenient. Plus, with three times the memory of the TI-89, you can store more Apps, data, and programs

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Saturday, November 19, 2011

Pokémon Red on calculator! [NOT A HOAX]

A nerd's dream! I got my TI-89 for Calculus yesterday, and figured out how to run GB games on it (it's really easy if you have the right specs.) Note that it takes up absurd amounts of flash ROM space (at least Pokémon does) and can run slowly at times with a low frameskip (you can control that though a bit.) I doubt Pokémon will fit on any model lower than TI-89 Titanium. Oh, and by the way, there's a tutorial on here that shouldn't be too hard to find.

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Thursday, November 17, 2011

Star Wars Pod Racer - TI-84 Plus, TI-83 Plus Games - Graphing Calculator Games

Get TI-83 Plus & TI-84 Plus games at calculatorti.com Play games on on your TI-83 Plus, TI-83 Plus Silver Edition, TI-84 Plus, TI-84 Plus Silver Edition TI-89 or TI-89 Titanium graphing calculator! Download this and other calculator games for free. Star Wars Pod Racer Link www.calculatorti.com This TI-83 Plus and TI-84 Plus game is a Star Wars Pod Racer is a race type game where you try to dodge oncoming rocks. The object of the game is to survive as long as you can without crashing into any of the rocks.

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Wednesday, November 9, 2011

The History of Calculators

!±8± The History of Calculators

There was a time in history when simple arithmetic was compulsory in school. As technology emerged new discoveries quickly transformed the way we used traditional methods. One of these great inventions was the calculator. Modern calculators differ from old counting instruments. Numerical devices such as the abaci and comptometers were a manual process that was full of errors and quite tedious. Conversely modern calculators are digital or solar powered and don't require much manual labor. They are very inexpensive and come in many sizes and models. Listed below are seven lucky facts about calculators you should know:

In Education
1. There was plenty resistance to using calculators in school because it was thought that it would take away from their basic arithmetic skills.
2. Some scientific research indicates that insufficient guidance in the use of calculators can hold back mathematical thinking that pupils learn. On the flip side, others dispute that mathematical devices can cause fundamental mathematical skills to weaken or that such use can prevent learning of key mathematical concepts.

History: The Early Days
3. The first type of calculating instrument that was implanted was the Abacus. They were made out of a square shaped wooden piece with beads sliding up and down on wires. The Abacus is still used by merchants and fishermen in Africa and Asia.
4. The first recorded analog computer was in 150 BC. It was called the Antikythera mechanism and the astrolabe. These computation devices were made in Greece.

17th to 19th century
5. Wilhelm Schickard a German mathematician made the first digital calculator in 1623. He is dubbed the father of the computing era. His design used techniques that a clock used so addition devices were originally called computing clocks.
6. These gadgets were later improved upon by Charles Babbage (rhymes with cabbage) when he invented the mechanical calculator. It was called the difference engine because it could manipulate seven numbers of thirty-one.

Present
7. In the early eighties computing gadgets were a luxury item costing about two weeks pay. Prices dropped as cost of construction material for these devices became less expensive and accessible.
Today it is difficult for manufacturers to make a good profit of selling calculators solely. Consequently companies have competed to find unique strategies to sell computing devices. You can now purchase them as a dual items on mouse pads, pens, rulers and almost anything you can think of.


The History of Calculators

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