All posts by Bob

Where does the word “atlatl” come from? Thank Zelia Nuttal.

Zelia

One of the people we as atlatlists owe a great debt of gratitude to is Zelia Nuttal. She was a polyglot who used her mastery of several languages to discover and write about pre Aztec cultures in Central America. She had a working knowledge of Nahuatl the language of the Aztecs who dominated what is now central Mexico during the Late Postclassic period of Mesoamerican history.

Zelia Maria Magdalena Nuttall wrote an article in 1891 called “The Atlatl or Spear-thrower of the Ancient Mexicans”. It is very likely that the word “atlatl” was brought into the English language via her publication. Nuttal was born in San Francisco, on September 6, 1857 and died April 12, 1933. She was an American archaeologist and anthropologist, who specialized in pre-Columbian Mesoamerican manuscripts. She traced the Mixtec codex now called the Codex Zouche-Nuttall and wrote the introduction to its first facsimile publication (Peabody Museum, Harvard), 1902. She was educated in France, Germany, and Italy, and at Bedford College, London.

This is sourced from a Wikipedia article. –Bob Berg

Time for Holiday Orders! Gift Certificates Available!

If you are thinking an atlatl set would make a great gift, now is the time to order! Our shop is ready for Christmas orders. If you want delivery by Christmas and delivery by priority mail, it is probably best to order by December 18. Beginning December 21, we will ship by express mail to guarantee delivery by December 25 depending on your location.

Unsure of which atlatl to choose from, give us a call and we will help you with your order. Our number is 800-836-4520. You can also reach us on a cell phone at: 607-743-4379. Leave a message if you don’t receive an answer and we will return your call as soon as possible.

We offer gift certificates if you would rather let your recipient make a decision on an atlatl set. We can mail gift certificates through the postal system or can email them.

Looking forward to hearing from you!

Cyber Monday Special Atlatl Deal

Nanticoke Kits are $36 each or 3 for $100 today and tomorrow only.

We also made a batch of nice one piece Catatonk atlatls normally $45 today and tomorrow $36 or with 3 six foot darts $70.

This special ends at midnight December 1st, 2009 eastern. Thank you all and enjoy this festive season.

Bob and Cheryll Berg

Hot/Cold Hybrid Drive Train

A Cool Way of Squeezing More Energy Out of Fuel

A hot/cold hybrid automobile drive train uses fossil fuel to run a small engine that compresses its own products of combustion, mixes it with liquid nitrogen that runs pneumatic engines that power the drive wheels of the car.

Typical internal combustion engine vehicles are less than 20% efficient because they loose large amounts of energy out of the radiator, tailpipe, radiation from engine parts and drive train friction. The Hot/cold hybrid drive train system uses both sides of the thermodynamic equation to produce kinetic energy to power the car. The heat generated by the burning of fuel and the compression of the products of combustion mixes with and boils the liquid nitrogen creating high pressure utilizing heat that would normally be lost. The liquid nitrogen absorbs enough heat to go from ?196 C or ?321 F to over the boiling point of water. If the liquid nitrogen were not confined to its pressure tank it would fill a volume nearly 700 times its liquid volume.

Click on the picture to see a larger version.

Diagramatic Car Concept

ln2-flow-chart

Car Concept

This concept drawing shows the small internal combustion engine to the left, attached in line to a compressor. The exhaust from the engine goes directly into the intake ports of the compressor. As the exhaust gasses are compressed they become hotter. At this point the hot compressed gasses are mixed with liquid nitrogen through a special valve. The mixture passes into a tank which has provisions for removing water before being used in the pneumatic engines located as close to the drive wheels as possible.


So Where Do We Get That Much Liquid Nitrogen?

Answer: Windmills
The largest problem with wind electric power generation is that for every megawatt of power a windmill may produce you need to provide an equal amount of alternate electric power somewhere else that can operate when the wind isn’t blowing. The alternative power station must be able to go on and off as the wind changes and respond immediately to demand. Windmills also have problems operating in very cold weather.

This proposal solves several problems.

Windmills could be designed to directly power large capacity compressors connected directly to the wind turbine in the nisscell at the top of the mast. The Von Linde system of converting gasses to liquids would be used which essentially uses a multi-step process where air is repeatedly compressed and cooled. The initial cooling fins containing hot water which is a byproduct of the Von Linde process could be located in the routers of the windmill which would make it usable in even the coldest weather when normal windmills are dangerous to operate because of icing. Windmills used to generate liquid nitrogen would work best in near blizzard conditions when the wind is blowing hardest and the cooling system is most efficient.

If windmills were used to make liquid nitrogen, when the wind did not blow it would not cause the immediate need to turn on an alternate power generator. Tanker trucks would pick up the liquid nitrogen when the wind mill’s tanks were full. Wind mills can be located close to where you need to fuel your vehicle instead of Saudi Arabia.

Use Locally Available Fossil Fuel

It is easy to operate small engines on liquid natural gas by changing the carburetor and adding a pressurized tank to hold the fuel. Liquid natural gas is energy dense. Not only does it contain the energy of combustion but also, like the liquid nitrogen, it has a reserve of energy contained in its heat of vaporization that can also be used to help propel your future car.

Symbiotic Uses of Local Power

The flow chart above shows several ways to produce liquid nitrogen and the byproducts that can be gleaned from the process.

Symbiotic relationships with other industries could be formed. An example of that would be a hospital located near windmills that could use the hot water, oxygen, and xenon produced in the process of generating liquid nitrogen.

Steel mills that use a lot of oxygen could form symbiotic relationships with auto fuel suppliers by supplying them with nitrogen rich gas left over from separating out the oxygen.

Welding supply companies use argon and oxygen and could liquefy the nitrogen for use as auto fuel.

A Walk Around Bob Berg’s Atlatl Shop

We stock many atlatls so we usually can ship your order within a day or two.

A Walk Around Bob Berg's Shop
Drawer full of Nanticoke atlatls. Three of the versions are shown here including the Simple Nanticoke which is made only from wood; the Nantocoke with Leather Loops, and the Original Nanticoke which has leather loops and is completely laced.

A Walk Around Bob Berg's Shop” Kanakadea Atlatls

A Walk Around Bob Berg's Shop
Kanakadea Kits; unfinished atlatls designed to be finished by our customers.

A Walk Around Bob Berg's Shop
Wyalusing and Wappasening Atlatls. These are our best selling high value atlatls.

A Walk Around Bob Berg's Shop
Fletching and atlatl accessories.

A Walk Around Bob Berg's Shop
Nanticoke Blanks; We make Nanticokes from many kinds of wood.

A Walk Around Bob Berg's Shop
This is our pattern rack.

A Walk Around Bob Berg's Shop
Bob’s Studio. This is bob’s favorite place to finish atlatls and darts. It also serves as a music room for local jams, painting studio and museum.