Looking Back

Sept. 25, 2008
10 YEARS AGO — SEPTEMBE R 24, 1998

New chips open doors for smart cards: Four high-capacity memory chips from Motorola will let developers combine several applications on a single smart card at a cost comparable to today’s single-application cards. The chips, with up to 32k of EEPROM, target card-payment and mobile telecommunications. They are based on a Motorola M68HC05 smartchip core and are produced on 8-in. (200mm) wafers, an industry first for smart chips. Reduced circuit geometries (0.4 and 0.27-micron processes) let designers put more features on each chip.

30 YEA RS AGO — SEPTEMBE R 21, 1978

Widest electrostatic plotter writes with 14,336 nibs: To produce 200-dpi resolution across 72-in.-wide paper, the new Versatec 8272 uses 14,336 electronic writing nibs. The widest high-resolution electrostatic plotter yet manufactured, it draws at 7.5 ft2/min with a maximum dot-to-dot position deviation of 1.5 mils horizontal and 2 mils vertical. An exclusive shaft encoder and servomotor drive provide the accuracy. The encoder determines timing and writing location; the servomotor controls paper movement. Dark, consistent images are made by a toner-control system and dual-array writing head. A turbulent flow-toner system maintains contact between toner and paper.

50 YEA RS AGO — SEPTEMBE R 18, 1958

Gasoline-filled blimp sails deep under the sea: The Navy’s bathyscaph permits safe sea exploration at 20,000-ft depths. The vessel works like a blimp in reverse. Buoyancy is provided by 28,000 gallons of aviation gasoline contained in a thin-walled metal “bag.” As the ship descends, water is taken into the bag, compressing the gasoline and reducing buoyancy. Since internal pressure offsets external pressure, wall thickness of the bag is only 1/3 in. Batteries supply power for propulsion and fail-safe buoyancy controls. In the event of a power failure, electromagnets automatically release all ballast — 10 tons of pellets — and the ship should bob to the surface. Externally mounted electrical apparatus is filled with nonconducting liquids to keep out seawater.



Gasoline-filled blimp

Sponsored Recommendations

MOVI-C Unleashed: Your One-Stop Shop for Automation Tasks

April 17, 2024
Discover the versatility of SEW-EURODRIVE's MOVI-C modular automation system, designed to streamline motion control challenges across diverse applications.

The Power of Automation Made Easy

April 17, 2024
Automation Made Easy is more than a slogan; it signifies a shift towards smarter, more efficient operations where technology takes on the heavy lifting.

Lubricants: Unlocking Peak Performance in your Gearmotor

April 17, 2024
Understanding the role of lubricants, how to select them, and the importance of maintenance can significantly impact your gearmotor's performance and lifespan.

From concept to consumption: Optimizing success in food and beverage

April 9, 2024
Identifying opportunities and solutions for plant floor optimization has never been easier. Download our visual guide to quickly and efficiently pinpoint areas for operational...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!