Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!

Innovative Power Products Passive RF Products - RF Cafe

Windfreak Technologies Frequency Synthesizers - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

everythingRF RF & Microwave Parts Database (h1)

Cool Video / Audio Archive - 8

Videos for Engineers - RF CafeThis archive links to the many video and audio files that have been featured on RF Cafe.

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9
10 | 11 | 12 | 13 | 14 | 15 |
16 | 17 | 18 |19 | 20 | 21 | 22
23 | 24 | 25 | 26 |

RF Cafe: University of Maryland sphere for investigating Earth magnetic field reversalGet ready to flip the dial on your compass by 180° soon. Well not real soon, but indications point to another reversal of the Earth's magnetic field reversal in as little as 1,500 years. To more accurately investigate the phenomenon, researchers at the U. of MD have constructed a 30-ton sphere that spins at more than 90 mph to generate magnetic fields. The 10-ft sphere is filled with 13.5 tons of liquid sodium to mimic the Earth's liquid-iron center core. A 3.3-ft sphere counterrotates inside the larger one.



 - RF CafeThis robotic pack "animal" is so life-like that it is shocking. You would swear it is some kind of hoax - but it definitely is not! If you have not already watched the video of Boston Dynamics' Big Dog in action, you need to do so now.



Representative reads into the Congressional record the EPA's requirement for "safe" disposal of CFL bulbs - RF CafeIf not for being so pathetic, it would be funny. Watch/listen as a politician reads into the Congressional Record the EPA's procedure for properly handling the cleanup and disposal of CFL light bulbs. Hopefully, by the time the light bulb police require us all to stop using incandescent bulbs, the LED models will be available.



RF Cafe Cool Video - Tesla coil being used as a guitar ampYou've heard of playing an air guitar. Well, this is sort of an air amp + speaker + light show all in one. All the action is provided by a Tesla Coil that is rigged to respond to an electric guitar. There is not a lot of background info on the contraption, or even the inventor. It definitely passes the geek test.



Tour of the Large Hadron Collider - RF CafeAn IEEE reporter gives a brief tour of the $8B, Large Hadron Collider (LHC), operated by CERN. This is the machine that kooks have sued to try to keep from operating, fearing the creation of an Earth-swallowing black hole. The LHC made its debut 1-way test last week, 20 years after breaking ground. The 12 kiloton, 5-story main detectors contain enough wire to wrap 7x around earth.



The Power of Pond Scum: Biodiesel and Hydrogen from Algae - RF CafeConverting pond scum into biofuels is the crowning achievement of Valcent Products, which has developed a conversion system that uses engineered algae. Unlike current processes that waste consumable food crops to produce less than break-even energy yields just to make certain types feel good about themselves, no child (human, anyway) will go hungry because of Vertigro production. A hectare of processing area can yield more than 48,000 L of oil per year, while the same area of a corn field gets you only 40 L/yr. Founder Kertz predicts refinement of the process can eventually yield 150,000 L/hectare/year. Here is a video of the process.



Play Tetris on your HP 54600B - RF CafeIf you have an HP 54600B o-scope sitting around the lab, here is a way to reduce a little stress. #1 Power on the scope. #2 Press the button "Print/Utility" once. #3 Hold function buttons 2 and 3 down at the same time, for half a second. Play Tetris! Maybe it works on other models as well.



Boeing 777 built and flown in 4 min 10 sec - RF CafeWatch a Boeing 777 be fully assembled, painted and flown in 4 minutes and 10 seconds. Engineering projects of this magnitude always amaze me when I consider the logistics involved: materials sciences, human factors, electronics, aerodynamics, communications, computer simulations, and much more. Thanks to Cornell.



RF Cafe Cool Video: Air Vortex Gun competitions in JapanI wish I understood Japanese and knew what these guys are saying. Evidently, building and operating giant air vortex guns is great sport in Japan. Adding smoke to the mix for enhanced visualization gives it a cool, menacing, sci-fi look.



Lightning striking a tree - RF Cafe Lightning strikes a minivan - RF CafeHere is why your mother told you to never stand under a tree during a lightning storm. What's the safest place to be while outside? In your car. Supposedly, nobody has ever been killed (at least in Canada) when lightning struck the car he/she was in. It is due to that Faraday Shield thing at work.



Engineered Matchbox car races - RF CafeLehigh University mechanical engineering students and profs introduced Broughal MS students to the process of computer-based design and manufacturing by helping them modify their Matchbox cars for a good old-fashioned downhill race (w/modern electronic timer). They aerodynamically shaped the car, then created wax and aluminum molds for producing plastic prototypes of their designs.



Electron Gets Film Debut in First-ever Video of its Kind - RF CafeThis video shows how an electron rides on a light wave after just having been pulled away from an atom. This is the first time an electron has ever been filmed in this way. "We demonstrate a quantum stroboscope based on a sequence of identical attosecond pulses that are used to release electrons into a strong infrared laser field exactly once per laser cycle."


everythingRF RF & Microwave Parts Database (h1)
Amplifier Solutions Corporation (ASC) - RF Cafe

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

TotalTemp Technologies (Thermal Platforms) - RF Cafe