| Nov 24, 2012
| 2:55 PM
The prototype for a solar-powered refrigerator that could ease the burdens of farmers from Pasadena to Punjab has earned a $25,000 grant for a Caltech aeronautics student and his colleagues.
Three years ago, Prakhar Mehrotra was on a foreign exchange...
| Dec 7, 2012
John D. Silva was the chief engineer for KTLA-TV in 1958 when he outfitted a helicopter with a TV camera and changed television news coverage forever.
He turned a rented Bell helicopter into the Telecopter, essentially a flying TV studio. The first of...
| Aug 6, 2013
| 12:00 PM
Working in the yard, running, playing softball ... summertime activities can turn you into a sweaty, dirty mess. Not only you, but your baseball cap as well.
So how do we clean it?
Some caps are made to be washed; other cheap versions are hardly worth...
| Sep 1, 2013
Sick of $450-a-month gas and electric bills for their Baltimore County rowhouse, James and JoAnn Allis replaced their old, inefficient air conditioner. And their windows and doors. Then they added insulation in their home's many leaky spots and coated...
| Sep 17, 2013
Q: How can the home cook make gelato?
—Jack Kane, Chicago
A: Yes, the home cook can make gelato. The process is pretty much the way you'd make ice cream at home. Just follow the instructions that come with your ice cream maker.
| Sep 25, 2013
| 10:07 AM
NASA engineers have built a device that uses radar to detect heartbeats in the rubble of collapsed buildings, with technology typically used to explore other planets. The FINDER device, developed with the Department of Homeland Security, could help...
| Apr 8, 2013
| 12:52 PM
Forget wondering who's the fairest; when it comes to choosing home improvements that make your home look good - from the curb and to potential buyers - it may make more sense to ask "Who's the greenest of them all." Sustainable home improvements not...
| Sep 27, 2013
| 12:30 PM
Gung hei fat choy! That's the traditional Cantonese greeting (roughly translated as, "Wishing you great happiness and prosperity!") heard in midwinter with the arrival of the Chinese New Year, a lunar holiday falling this year on Sunday, Feb. 10.
| Sep 30, 2013
| 6:30 AM
DEAR TIM: Many roofs in my neighborhood, mine included, are covered with black streaks. What's causing this to happen, and can the roofs be cleaned? I'm able to walk on my asphalt shingle roof with ease, but am afraid of hurting the shingles by cleaning...
| Sep 30, 2013
| 6:30 AM
I have recently been made aware of how loud certain sounds can be, right down to the exact decibel.
For example, I now know that normal speaking volume is between 60 and 70 decibels while whispers hover between 20 and 30 decibels. I know this because a...
| Jul 26, 2013
Cleaning in most homes concentrates on kitchens and bathrooms. But what about the room with a car? On top of dirt and debris from the street, garages are often the most used entrance, and may include a washer and dryer, recycling bins, a home shop, and...