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News

Paws-itively  ready for  disaster

Paws-itively ready for disaster


Dozens of local residents participated in the Pet Ready! program, which included first-aid tips for animals from Adobe Animal Hospital veterinarian Dr. Cristi Blackwolf, bottom right. Girl Scouts Rachel Torgunrud, bottom left, in purple of Sunn...

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Schools

Local students earn honors at Tech Challenge

Local students earn honors at Tech Challenge


Courtesy of Ann Hepenstal
Gardner Bullis School’s Tech Challenge Team “Fantastic V,” above, recently showed their project at the school’s STEM Expo. Teammates, from left, Brandon Son, Will Hooper, George Weale, Tripp Crissma...

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Community

Merchants, maypoles, music: Farmers' Market season launches May 1

Merchants, maypoles, music: Farmers' Market season launches May 1


Town Crier File Photo
Visitors examine the fresh produce on display at last year’s Downtown Los Altos Farmers’ Market.

It wouldn’t be spring without the return of the Downtown Los Altos Farmers’ Market May 1. The Los Altos Village Association sp...

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Sports

LA tops MV behind Beutter's big day

LA tops MV behind Beutter's big day


Ellie Van Houtte/Town Crier
Los Altos High pitcher Lizzie Beutter went the distance to earn the win against Mountain View.

The number of Los Altos High hits and Mountain View High errors may be in dispute, but there’s no debating which softball ...

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Comment

Enlightened California: No Shoes, Please

I recently read a newspaper article about the newly adopted sex-education curriculum in the state of Mississippi. In the city of Oxford, the following exercise is included: Students pass around a Peppermint Patty chocolate and observe how spoiled it ...

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Business

Cobblery makes short move next door: Longtime business relocating to State Street in May

Cobblery makes short move next door: Longtime business relocating to State Street in May


Ellie Van Houtte/Town Crier
European Cobblery owner Paul Roth is relocating his business from 201 First St., above, to 385 State St. in May.

The European Cobblery, a family-owned and -operated shoe store, is relocating to a new home just a few month...

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Books

Local Author Spotlight

In an effort to support authors from Los Altos, Los Altos Hills and Mountain View, many self-published, Book Buzz periodically spotlights their books and offers information on where to purchase them. Local authors are encouraged to submit brief summa...

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People

'Champions for Youth' announced

Challenge Team will honor Mountain View Police Chief Scott Vermeer as “Champion for Youth” at the nonprofit organization’s annual fundraising breakfast, scheduled 7 a.m. May 7 at Michaels at Shoreline, 2960 N. Shoreline Blvd., Mountain View.

Lauren ...

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Stepping Out

Last go-round for 'Hound'

Last go-round for 'Hound'


Tracy Martin/Special to the Town Crier
The actors in “The Hound of the Baskervilles” – from left, Darren Bridgett, Ron Campbell and Michael Gene Sullivan – take on dozens of roles.

TheatreWorks is slated to present “The Hound of the Baskervilles...

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Spiritual Life

Magazine

A yoga class a day keeps the stress away

A yoga class a day keeps the stress away


Van Houtte/Town Crier Yoga of Los Altos hosts a variety of classes, including Strong Flow Vinyasa, above, taught by Doron Hanoch. Yin Yoga instructor Janya Wongsopa guides a student in the practice, below.

It’s nearly 9 a.m. on a Monday mornin...

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GPS guru explains its immense capability in Rotary Club of Los Altos appearance


John Hammerschmidt/ Special to the Town Crier
Frank van Diggelen, an expert on GPS, addresses the Rotary Club of Los Altos Oct. 24.

That tiny global positioning system chip in cellphones has had a big impact on society, according to GPS expert Frank van Diggelen, Ph.D., who appeared at the Rotary Club of Los Altos meeting Oct. 24.

Van Diggelen is senior technical director at Global Navigations Satellite Systems, chief navigation officer at Broadcom Corp. and consulting professor at Stanford University, where he teaches a graduate course on GPS. He holds 69 U.S. patents and won the Institute of Navigation’s Thurlow Award for outstanding contribution to the science of navigation in 2010.

We are living through a huge technology transition that allows access to navigation, formerly limited to the elite, to the general population, van Diggelen said, a shift equivalent to the development of the printing press in the 1500s, which brought literacy to the masses, or the development of computers in the 1980s, which made personal computing available to the general public. Smartphones produced since the first 3G iPhone have GPS capability linked to the 32 satellites now in orbit, he added.

Satellite navigation began when Sputnik was launched in 1957, van Diggelen said. It broadcast radio signals that reached Earth in 70 milliseconds. The time delay and Doppler effect could be measured to establish locations on the planet. The U.S. Navy built the first GPS for Polaris submarines. Satellites’ atomic clocks keep time accurately to a billionth of a second. There is just one line of code in smartphones that establishes their GPS location, van Diggelen said.

In geoscience today, fixed reference stations measure crust motion on Earth accurately to millimeters. A receiver near Stanford University indicates that the Los Altos area moves northwest 3 inches per year, van Diggelen noted.

He predicts a “big future” that includes GPS forensics to prove where a person’s cellphone is located at any time, and autonomous vehicles that communicate other vehicles’ positions for safe, automatic driving. With GPS, even “economically efficient” traffic lights may become available.

“How much are you prepared to pay for green lights?“ van Diggelen asked the Rotarians.

Marlene Cowan is a member of the Rotary Club of Los Altos.

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