Wednesday, August 27, 2014
YOLO COUNTY NEWS
99 CENTS

This windmill is for the birds

By
From page A6 | November 15, 2012 |

In a recent column in The Enterprise, John Mott-Smith accurately described an alternate form of windmill for capturing wind energy. At least one example of it can be found already in Davis. He reports that this design is quieter than those three-blade propellers we see on wind farms.

An unmentioned feature far more valuable, however, is that this alternate design could avoid most of the bird slaughter currently a byproduct of the three-bladed propellers. Raptors and migrating birds get clobbered by these spinning propellers when their speed makes them least visible to birds in flight.

Mott-Smith describes the alternate: “Think of a cylinder (like a tin can) on a pole, except that the cylinder consists of five equally spaced vertical ‘blades’ ” (we could call them staves or slats). They spin around a vertical axle; when spinning fast, they look like a can rather becoming invisible.

American makers of the “propeller” design would resist changing it now; but the only change needed is the “wind-catcher,” not the mechanism that converts the spinning into electricity. And although the example seen was made in China, American engineers surely can find enough design differences to avoid patent litigation. OK, say it: This one is for the birds. Because it truly is.

Dale M. Heckman

Davis

Comments

comments

Letters to the Editor

.

News

Mr. Dolcini goes to Washington

By Tanya Perez | From Page: A1

 
Yolo grows sunflower seeds for the world

By Margaret Burns | From Page: A1 | Gallery

True Blue Devil Arnold gave back starting in high school

By Bruce Gallaudet | From Page: A1 | Gallery

 
Play groups offered by Center for Families

By Enterprise staff | From Page: A3

Solar-cooking workshop set at Food Co-op

By Enterprise staff | From Page: A3

 
Give blood and get a free movie ticket

By Enterprise staff | From Page: A3

Chat with Poppenga at coffee shop

By Enterprise staff | From Page: A3

 
Sunder campaign distributes signs

By Enterprise staff | From Page: A3

Dinner, auction benefit Yolo County CASA

By Enterprise staff | From Page: A3

 
Farmworkers’ son wins prestigious NIH scholarship

By Julia Ann Easley | From Page: A3 | Gallery

Interested in Portuguese? Drop by I-House

By Enterprise staff | From Page: A3

 
Global warming on group’s agenda

By Enterprise staff | From Page: A4

A sweet reward for turning in cash

By Kathy Keatley Garvey | From Page: A4

 
Yolo Federal to hold photo contest

By Enterprise staff | From Page: A4

Try yoga, meditation at Holistic Health Center

By Enterprise staff | From Page: A4

 
Troops get ‘Hugs From Home’

By Special to The Enterprise | From Page: A4

Raley’s pays $1.6 million to settle hazardous-waste lawsuit

By Special to The Enterprise | From Page: A4

 
Back-to-school party benefits Archer campaign

By Enterprise staff | From Page: A4

Breast cancer program examines surgery

By Enterprise staff | From Page: A4

 
Crisis nursery bill on governor’s desk

By Enterprise staff | From Page: A4

UCD West Village gets an electric Zipcar

By Special to The Enterprise | From Page: A5

 
 
Documentary reveals ‘The Village Under the Forest’

By Special to The Enterprise | From Page: A5

Little Rock hero featured at reunion

By Enterprise staff | From Page: A7

 
UCD ranks No. 16 for serving the public interest

By Special to The Enterprise | From Page: A7

Wolk’s infrastructure bill clears state Senate

By Special to The Enterprise | From Page: A9

 
.

Forum

Parents could use a hand at home

By Creators Syndicate | From Page: B5

 
Play structure idea endorsed

By Letters to the Editor | From Page: A6

Thanks for firearms info

By Letters to the Editor | From Page: A6

 
Obama risks alienating Latinos

By Tom Elias | From Page: A6

A water plan for all of California

By Special to The Enterprise | From Page: A6

 
Tom Meyer cartoon

By Debbie Davis | From Page: A6

MRAP sends the wrong message

By Letters to the Editor | From Page: A6

 
.

Sports

Buschman, Cats mute the Sounds

By Enterprise staff | From Page: B1

 
New coach eager to see his Aggie charges hit the courses

By Bruce Gallaudet | From Page: B1 | Gallery

Shaw respects Aggies, while is Gould happy to get a shot at Stanford

By Bruce Gallaudet | From Page: B1 | Gallery

 
Devils prep for tough 2014 volleyball schedule

By Chris Saur | From Page: B1 | Gallery

Bumgarner deals as Giants blank Rockies

By The Associated Press | From Page: B1 | Gallery

 
Carter’s blast send Astros past A’s

By The Associated Press | From Page: B2

Sports briefs: Online registration ends Friday for Labor Day Races

By Enterprise staff | From Page: B8 | Gallery

 
.

Features

Field to fork: Play catch-up with summer’s produce

By Dan Kennedy | From Page: A10 | Gallery

 
.

Arts

.

Business

.

Obituaries

Franco M. Navazio, M.D.

By Special to The Enterprise | From Page: A4

 
.

Comics

Comics: Wednesday, August 27, 2014

By Creator | From Page: B6