RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
Videos for Engineers - Solar Death Ray: Power of 5000 Suns! Videos for
teenage scientist Eric Jacqmain has created a
sensation with his "Solar Death Ray." Per Eric, "The R5800 is my latest and greatest solar creation. Made from an
ordinary fiberglass satellite dish, it is covered in about 5800 3/8" (~1cm) mirror tiles. When properly aligned,
it can generate a spot the size of a dime with an intensity of 5000 suns! This amount of power is more than enough
to melt steel, vaporize aluminum, boil concrete, turn dirt into lava, and obliterate any organic material in an
instant. It stands at 5'9" and is 42" across." The performance is pretty amazing, especially given its low-tech
approach. It would be interesting to know whether Mr. Jacqmain has sustained any flesh burns while holding objects
in the focal point. I would not be holding anything in my fingers while searching for the hot spot. Ironically,
the shed used for storing the R5800 burned down; maybe it was facing a window with a southern view?
This archive links to the many video and audio files
been featured on RF Cafe.