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Planting Seeds of Technology

After successfully cofounding three communications companies, Judy Estrin is going for a fourth, this time to beget not more products, but more companies

14 min read
Vital Statistics:

Present position: chief executive officer, Packet Design LLC, Menlo Park, Calif.

First job: folk dance teacher

Most recent book read:The Last Precinct by Patricia Cornwell

Computer: Sony Vaio

Favorite Web sites:,,

Favorite food: chocolate

Favorite saying: "Everybody is a package deal"

Management philosophy: People do best when they understand the goals and participate in the success

Favorite award:Fortune's 50 most powerful women in business

When it comes to start-ups, some people just can't quit. For Judy Estrin, the hardest part about starting a company comes when it isn't just a little start-up anymore--when it merges with another company, is acquired, or goes public and suddenly feels a lot like a big, established company.

Estrin and her husband, Bill Carrico, have been through this a few times: in 1981 with Bridge Communications, which went public in 1985 and merged with 3Com two years later; in 1988 with Network Computing Devices (NCD), which went public four years later; and in 1995 with Precept Software, which was purchased by Cisco Systems three years later.

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The EV Transition Explained: Charger Infrastructure

How many, where, and who pays?

7 min read
Illuminated electric vehicle charging stations at night in Monterey Park, California.

Electric vehicle charging stations in Monterey Park, California.


The ability to conveniently charge an EV away from home is a top concern for many EV owners. A 2022 survey of EV owners by Forbes indicates that 62 percent of respondents are so anxious about their EV range that travel plans have been affected. While “range anxiety” may be overblown, the need for an extensive and reliable external charging infrastructure is not.

Infrastructure terminology can itself be confusing. For clarity, bear in mind that a charging station is a specific physical location which has one or more charging posts. A charging post itself may have one or more ports, where each port can charge a single EV. Each post may have multiple types of service connectors to support different EV charging connector standards. And a port may supply varying power levels.

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Video Friday: Humanoid Soccer

Your weekly selection of awesome robot videos

4 min read
Humans and human-size humanoid robots stand together on an indoor soccer field at the beginning of a game

Video Friday is your weekly selection of awesome robotics videos, collected by your friends at IEEE Spectrum robotics. We also post a weekly calendar of upcoming robotics events for the next few months. Please send us your events for inclusion.

CoRL 2022: 14–18 December 2022, AUCKLAND, NEW ZEALAND
ICRA 2023: 29 May–2 June 2023, LONDON

Enjoy today’s videos!

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Get the Coursera Campus Skills Report 2022

Download the report to learn which job skills students need to build high-growth careers

1 min read

Get comprehensive insights into higher education skill trends based on data from 3.8M registered learners on Coursera, and learn clear steps you can take to ensure your institution's engineering curriculum is aligned with the needs of the current and future job market. Download the report now!