Monthly Archives: September 2015

Crowd-Sourcing Science

Twenty-nine gravitational lens candidates found through Space Warps (Space Warps, Canada-France-Hawaii Telescope Legacy Survey)

Twenty-nine gravitational lens candidates found through Space Warps
(Space Warps, Canada-France-Hawaii
Telescope Legacy Survey)

It’s called Space Warps and the program just helped an international science team to identify 29 new gravitational lense candidates with the help of interested amateurs. Around 37,000 interested amateurs examined 430,000 images to help professional astronomers focus their investigation. In the process, Space Warps illustrated a growing effort to involve citizen scientists in cutting-edge investigations.

Big searches, big data
The Canada-France-Hawaii Telescope Legacy Survey (CFHTLS) employed an optical imaging camera in a wide field sky survey over a five-year period. The survey accumulated a huge number of images during more than 2300 hours of observation, and then made the data set available for investigators.

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Multi-jet Jellies May Point the Way to Better Underwater Propulsion

N. bijuga nectophore structure (uoregon.edu)

N. bijuga nectophore structure
(uoregon.edu)

Squids and octopuses can swim using jet propulsion by forcing water through a mantle.  It’s a fast and effective method, and the jet can be steered, but only works in one direction at a time. Engineers, always in search of better undersea vehicle designs, however, are interested in these natural methods of locomotion.

A team of biologists has now found a tiny jellyfish that can maneuver through the water by coordinating multiple jets. The discovery, published in the September 2 issue of Nature Communications, could lead to better, more agile undersea vehicle designs.

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