The Lake Peigneur salt dome drilling disaster, which you can read about on Wikipedia and see on YouTube (and on EducatedEarth.com), demonstrates the importance and truth of the dictum “measure twice before you cut once.”
July 12, 2011
February 15, 2010
On his Website, he says:
Personal software tutoring via Internet phone
Expert hands-on tutoring in Photoshop, InDesign, Dreamweaver and other graphics stuff
I like to teach. I am, in fact, a damn good teacher. And I love talking about and demonstrating graphics software and graphics techniques. Therefore, I have decided to offer private tutoring sessions by phone in Photoshop, InDesign, Illustrator, Dreamweaver, XaraX and various graphics subjects. I have conducted such phone tutoring sessions with several people, and it works really well.
You — the student — and I will work on the same image or project in the software of your choice, for instant back-and-forth feedback. If you are online during the tutorial (recommend) we can easily send each other files while we talk.
The Awesome Deal
I charge $30 per 60-minute hour (phoning included) — which is a great bargain, if I may say so myself. I guarantee that you will learn a lot in just one hour. In fact, I am so confident you will be happy with our tutoring sessions that I offer a full money-back guarantee: I’ll refund your money without question if you tell me it wasn’t worth it — or give you some extra time for free, to “fill in the blanks”.
Am I legally required to say I did not, am not now, and will not in the future, benefit financially in any way from this recommendation: no stocks, bonds, money, Monopoly money, gold, silver, jewelry, diamonds, rubies, pirate treasure, books, old wadded up paper or gum wrappers, pencils, certificates, awards or anything else of a material, or spiritual, sort?
Update (2-16-10, 8:15 AM): Corrected a typo: I had written “an” instead of “am” in the last sentence.
September 15, 2009
This brief account of the history of AC in Texas illustrates the development and integration of knowledge, and that physical science is not –as most think — some bauble of the intellect, something separate from everyday life, but is rather certain, proven, reasoned knowledge of reality, of things we find and have to deal with on an everyday basis.
It is fascinating to read how technology of a time reflected and was limited by the science of the time, and how technology develops as physical science — reasoned knowledge of the cause-effect relationships amongst and the identity of physical objects — develops.
In “How Early Texans Beat the Heat” (Monday, August 3, 2009), U.S. Sen. John Cornyn writes:
Early Texans also used well water to cool their homes. They pumped water from the well to fan radiators, which were installed in spaces they wanted to keep cool. The practice of using well water as a coolant proved costly and not entirely effective. Unless homeowners used the water for other purposes after they cooled their homes, it was an expensive effort that didn’t yield significant results, with the well water usually only reaching 62 to 72 degrees
In the 1800s, German dairy farmers in central Texas began practicing evaporative cooling as a means of keeping their dairy products cool. The system involved placing the evening milk in metal cans, covering those cans with wetted blankets, and using fans to blow air through the blankets. This typically cooled the milk to 70 or 75 degrees, and the practice was eventually modified and used to cool homes.
Soon Texans were able to purchase natural ice from northern states that was cut from frozen lakes and rivers and shipped to Texas. When this supply was cut off during the Civil War, Texans used their ingenuity and resourcefulness to produce ice mechanically. In 1865, Daniel Livingston Holden of San Antonio installed a Carre absorption machine, which had been shipped from France to Mexico, and eventually made its way to Texas. Holden made several improvements to the machine, which previously used a combination of ammonia and water as a refrigerant. Holden fastened steam coils to the machine and used distilled water to make clear ice. His practice became popular and by 1867, three companies in San Antonio were manufacturing artificial ice.
As early as 1870, Texas cities began manufacturing cooling devices, which opened the door to a new industry in Texas. Manufacturers developed creative ways to use ice, as it became more readily available, combined with fans and air ducts. By placing a 300-pound block of ice in a vault, and then using a fan to blow air through the vault and into an outlet duct, cool air was emitted into a room or space that needed cooling. By 1920, Texans placed large blocks of ice in enclosed pools. From there, the ice water circulated to fan radiators that then cooled rooms, restaurants and other spaces. For many years, this process kept churchgoers cool at the First Baptist churches of Dallas and Austin, along with Highland Park United Methodist Church in Dallas.
Rice Hotel cafeteria became the first refrigerated air-cooled building in the Houston area in 1922. San Antonio was home to the Milam building-the first air-conditioned high-rise office building in the country in 1928.
Source: Texas State Historical Association’s Handbook of Texas Online.
September 4, 2009
Check out the first working model of Babbage’s Difference Engine No. 2. HT: Paul L.
The Statistics Dictionary says on Answers.com about Charles Babbage:
(1792–1871; b. London, England; d. London, England) English mathematician and inventor. He studied mathematics at Cambridge U, graduating in 1814. At Cambridge he was a co-founder of the ‘Analytical Society’ which advanced the cause of what is now the standard notation for differentiation. He was elected FRS in 1816 and FRSE in 1820 (the year in which he was a co-founder of what is now the Royal Astronomical Society). He is best known as the ‘Father of Computing’, having formulated the idea of a mechanical calculator during his student days. A first model was demonstrated in 1822, at which time he stated ‘I wish to God these calculations had been executed by steam’.
Statistics Dictionary. A Dictionary of Statistics. Second edition revised. Copyright © Oxford University Press, 2008. All rights reserved.
August 31, 2009
In”Single molecule, one million times smaller than a grain of sand, pictured for first time” (7:39 PM, 28th August 2009), Claire Bates writes:
It may look like a piece of honeycomb, but this lattice-shaped image is the first ever close-up view of a single molecule.
Scientists from IBM used an atomic force microscope (AFM) to reveal the chemical bonds within a molecule.
‘This is the first time that all the atoms in a molecule have been imaged,’ lead researcher Leo Gross said.
Published by Associated Newspapers Ltd
Part of the Daily Mail, The Mail on Sunday & Metro Media Group
© 2009 Associated Newspapers Ltd
Amazing. Check out the picture they have!!
August 27, 2009
Oil 150 says:
From medicine to jet fuel, the oil industry has not only powered progress, but transformed the world. It all began in the United States in 1859 in northwestern Pennsylvania, when Colonel Edwin Drake drilled the first successful commercial well.
Oil 150 is the official website of the 150th anniversary celebration of the oil industry, which occurs in 2009.
From now through 2009, this site will be updated with information on anniversary events, educational materials, historical places to visit, commemorative items, and more.
You are invited to join the celebration and share our pride in an American-born industry that has fueled unparalled progress in lighting, heating and transporting civilizations worldwide.
Check out the Drake Well Museum’s Website!!
August 17, 2009
HT: Dr. Paul Hsieh.
April 24, 2009
Some want us to turn out our lights and turn off our electricity.
Some want lights on and electricity in use. Mr. Don Boudreaux says in “What Earth Day Means to Me:”
I’m thankful for the automobile, which has cleaned our streets and highways of animal feces, which is both foul and filthy itself, and that attracts flies that spread it into our homes and workplaces.
I’m thankful for electronic appliances, such as those that (along with modern detergents – for which I’m also thankful) allow us to clean our used clothing and dirty dishes.
I’m thankful for electricity for making these appliances possible – and for enabling us to light our home without dirty candles, and for enabling us to heat our homes without coal, wood, peat, or other filthy substances.
I’m thankful for chemical fertilizers that increase the productivity of the earth’s soil, and thereby helps to prevent malnutrition — which, in turn, better enables each of our bodies to succeed at fighting off diseases that are more likely to sicken, or even kill, malnourished persons.
What would it be like if “Earth Hour” becomes “Earth Week,” “Earth Month” or “Earth Year?” No lights, no electricity, for a week, a month, or a year.
How has it been for those of you who have been in regions struck by hurricanes? What is life like with no electricity for two days, a week, or a month?
March 29, 2009
Holiday: The Competitive Enterprise Institute has an awe-inspiring video to celebrate Human Achievement Hour. See also The Real Meaning of Earth Hour by Dr. Keith Lockitch and Alternative to Earth Hour by the people who came up with the idea for Human Achievement Hour (but which they call Edison Hour).
Interesting. Certainly food for thought (questioning, research, reading, reasoning, appeal to induction and facts…not to authority or “consensus”) and food for action…
March 12, 2009
On this date in history, the first steam engine in America was installed and used to pump water from a mine.
In 1755, a steam engine was first reported used in America, at a copper mine in New Barbados Neck (now North Arlington), NJ. It was imported from England by Josiah Hornblower and put to use pumping water from the mine of Colonel John Schuyler.
The first steam engine in America was an English Newcomen-type engine, erected in 1755 to drain a copper mine.