Tag Archives: gps

Eight Seconds of Terror

A JPL Scientist Reflects on L.A.’s Last Big Quake

Twenty years ago this week, in the predawn darkness of Jan. 17, 1994, at five seconds before 4:31 a.m. PST, the ground ruptured violently on a blind thrust fault (a crack in Earth’s crust that does not reach the surface) about 11 miles (18 kilometers) beneath Reseda, in California’s San Fernando Valley about 20 miles (31 kilometers) northwest of downtown Los Angeles. The resulting magnitude 6.7 earthquake, known as the Northridge earthquake, became the first large quake to strike directly under an urban area in the United States since the 1933 magnitude 6.4 earthquake in Long Beach, Calif. (more…)

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Saving the Great Plains water supply

Significant portions of the Ogallala Aquifer, one of the largest bodies of water in the United States, are at risk of drying up if it continues to be drained at its current rate.

In the current issue of Earth’s Future, a journal of the American Geophysical Union, Michigan State University scientists are proposing alternatives that will halt and hopefully reverse the unsustainable use of water drawdown in the aquifer. The body of water, also known as the High Plains Aquifer, spans from Texas to South Dakota and drives much of the region’s economy. (more…)

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Using earthquake sensors to track endangered whales

The fin whale is the second-largest animal ever to live on Earth. It is also, paradoxically, one of the least understood. The animal’s huge size and global range make its movements and behavior hard to study.

A carcass that washed up on a Seattle-area beach this spring provided a reminder that sleek fin whales, nicknamed “greyhounds of the sea,” are vulnerable to collision when they strike fast-moving ships. Knowing their swimming behaviors could help vessels avoid the animals. Understanding where and what they eat could also help support the fin whale’s slowly rebounding populations. (more…)

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Tablets: An ideal vacation companion

Sleek, light, long-lasting and with a dazzling array of apps, today’s tablets have become an indispensable tool for travelers.

REDMOND, Wash. — Packing for summer vacation used to be quite a chore, but today a new travel companion is removing a lot of the guesswork and lightening the load. Travel guides? Check. Books? A whole library. Movies, music and games for the kids? Got ‘em. Map, compass, calculator, and even Office 2013 so you can get a little work done? Of course.

The best part is that it all comes in one small package. Sleeker, lighter and with more battery life, today’s tablet PCs are the perfect way to navigate new cities, stay entertained on the train, and keep connected to the office while you’re on the road. A tablet paired with a keyboard (or a convertible with a keyboard built in) can help travelers both work and play while away from home. (more…)

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World’s Longest-Running Plant Monitoring Program Now Digitized

Data from the research plots on Tumamoc Hill reveal changes in the Sonoran Desert and have been important to key advances in the science of ecology.

Researchers at the University of Arizona’s Tumamoc Hill have digitized 106 years of growth data on individual plants, making the information available for study by people all over the world.

Knowing how plants respond to changing conditions over many decades provides new insights into how ecosystems behave. (more…)

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Flying Test Bed: New Aerial Platform Supports Development of Lightweight Sensors for UAVs

A research team at the Georgia Tech Research Institute (GTRI) is developing an airborne testing capability for sensors, communications devices and other airborne payloads. This aerial test bed, called the GTRI Airborne Unmanned Sensor System (GAUSS), is based on an unmanned aerial vehicle (UAV) made by Griffon Aerospace and modified by GTRI.

“Developing new sensor technologies that can be effectively employed from the air is a priority today given the rapidly increasing use of unmanned aircraft,” said Michael Brinkmann, a GTRI principal research engineer who is leading the work. “Given suitable technology, small UAVs can perform complex, low-altitude missions effectively and at lower cost. The GAUSS system gives GTRI and its customers the ability to develop and test new airborne payloads in a rapid, cost effective way.” (more…)

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Robofish Grace Glides with the Greatest of Ease

A high-tech robotic fish hatched at Michigan State University has a new look. A new skill. And a new name.

MSU scientists have made a number of improvements on the fish, including the ability to glide long distances, which is the most important change to date. The fish now has the ability to glide through the water practically indefinitely, using little to no energy, while gathering valuable data that can aid in the cleaning of our lakes and rivers. (more…)

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Say Hi to a Magpie via New App

A new app which encourages people to say “good morning Mr Magpie” via their mobile phone will help scientists evaluate the benefits which birds bring to the quality of human life.

Whether you view them with sorrow or joy, using your smart device to help build up a national database of sightings of the distinctive black-and-white birds will feed into wider research by the University of Exeter to assess how much value people place on having birds in their gardens.

Dr Richard Inger, at the Environment and Sustainability Institute on the University’s Cornwall Campus, said: “We chose to study magpies because they’re one of the most common garden birds in the UK and are easily recognisable. Many people already acknowledge them for luck, and we’re asking them to go one small step further and log sightings on their mobile phones. Magpies are not everyone’s favourite birds, but by getting involved you can help us to gather crucial data which will help us establish how much time the birds spend in different habitats. (more…)

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