Vortex Bladeless Wind Generator


Credit: Vortex Bladeless

Vortex Bladeless is a technology which is lowering costs, requiring no training, and using fewer supplies to collect wind energy. David Yanez, co-founder, Vortex Bladeless, said it all began with a bridge disaster. The bridge, he said, started swaying and oscillating in heavy winds. This was the Tacoma Narrows Bridge collapse of 1940, and the event occurred under 40-mile-per-hour (64 km/h) wind conditions. The collapse would in later years continue to be a topic among engineers and scientists discussing the aeroelastic flutter and motivating their research in aeroelastics.

The structure, said Yanez, was caught up in aeroelastic coupling. Yanez and team worked on recreating similar conditions to lead to their development of a bladeless wind turbine. Instead of turning, the turbine oscillates, producing movement and displacement, said Yanez. “The system is based on the same principles as an alternator—electromagnetic induction.” They multiply that movement and speed magnetically—without any gear assemblies or ball bearings. They turn the mechanical energy of the structure into electricity.

Raul Martin, Vortex Bladeless co-founder, said, “Compare our invention to a conventional wind turbine with similar energy generation—ours would cost significantly less,” around 50 percent or 47 percent less. The company site said that Vortex saves 53 percent in manufacturing costs and 51 percent in operating costs compared to conventional wind turbines.

“Because there is no contact between moving parts,” said the Vortex site, “there is no friction. Therefore no lubricant is required.”

Watch the detailed video here.

Source (Daily Digest)

The Alchemist’s Letter

The film’s overarching message may not be the most innovative, but the way in which it hits those well-worn narrative beats is quite unique and effective. Stevens uses the visual language of highly polished 3D animation to convey the story. The design work present in this film is astounding as is the lighting and camera-motion. Although the film essentially takes place in only one location, by using the Alchemist’s fascinating machine as a central visual storytelling device, the viewer is transported effortlessly to different places and times. What results is essentially a montage, but it’s a highly effective one—impeccably designed and imbuing the material with just enough depth to form a lump in your throat. It’s perfect for those with short attention spans who just want an immediate injection of “the feels.”

Source (Ivan Kander, “The Alchemist’s Letter”, Short of the week)

All about barcodes


Left Hand Guard Bars – These bars serve as a starting reference point for the scanning devices.
Number System Character – This digit identifies the type of manufacturer or how the barcode will be used. For example 0, 6, and 7 are generally used in the retail industry, while 3 is assigned to the health and drug manufacturing industries.
Number System Bars – These bars correspond to the Number System Character.
Manufacturer ID Number – Each company must apply for a Universal Product Identification Number with the Uniform Code Council. The UCC assigns each company a unique six digit identification number for use on all of their products. The number is composed of the Number System Character and a five digit manufacturer’s code.
Manufacturer ID Bars – These bars correspond to the Manufacturer’s ID Number.
Tall Center Bar – These bars serve as a middle reference point for the scanning devices.
Item Number – Each company is responsible for assigning a unique five digit number to each of their products.
Item Bars – These bars correspond to the Item Number.
Modulo Check Character – This digit is derived from a mathematical formula based on the unique set of numbers in each barcode that helps ensure the accuracy of the data scan.
Modulo Check Bars – These bars correspond to the Modulo Check Character.
Right Hand Guard Bars – These bars serve as an ending reference point for the scanning devices.

upcaUPC A – Uniform Product Code version A is a widely used style of barcode in retail stores for sales checkout.

upceUPC E – Version E is a compressed UPC A also called Zero Suppressed. Used on small items like cans of soda, cigarettes, and candy.

ean13EAN 13 – European Article Numbering encodes 13 characters and is used throughout the world (except for USA and Canada) to mark physical goods in retail shops.

IisbnSBN – International Standard Book Number includes the price of the book in the barcode. The last 5 digits in this example translate to $44.95 US dollars.

datamatrixData Matrix – Two-dimensional barcode which can store 2,000 ASCII characters. It can encode a lot of information in a small space.

Source (“Barcode Diagram”, Barcode Art)