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Bente Lilja Bye
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Nanotech remains awesome!
 
NANOSCIENCE – The word “lens” takes its name from the Latin world for lentil because of its curved shape, so an ultrathin, flat lens should be at best an oxymoron. Instead, it is the latest thing in nanoscale optics, and it could have many interesting uses.
 
The lens developed by Andrei Faraon’s team is only 1 micron thick (about one-hundredth the diameter of a human hair) and made out of silicon (http://bit.ly/1JVuWZG). This should make it possible to integrate these lenses in digital cameras and silicon electronics.
 
Conventional lenses work by bending light to focus it on a single spot. The thick center of the lens slows down light, so that the light entering the thinner edges can take a longer path from the edge to the center and everything will arrive at the focal point at the same time.
 
(Remember, light may have an absolute speed when traveling through a vacuum, but it slows down when it goes through air or glass.)
 
Faraon controls light bending and speed by creating arrays of stumpy nanoscale cylinders within the thin silicon film. Height and thickness determine the wavelengths with which the stumps interact. As light moves through the array, the stumps delay the passage of different wavelengths through different parts of the lens so everything meets at the focal point.
 
They researchers can focus up to 82 percent of the light passing through them. That’s much better than the few percent achieved by flat metal lenses, but not as good as the nearly 100 percent transmission achieved by high quality nonspherical lenses. On the other hand, the flat lenses are easier to integrate into semiconductor devices.
 
Unfortunately, they are not replacing your camera any time soon. Right now, they work only with narrow wavelengths, like red or infrared.
 
Still, Faraon thinks we could use them with lasers (which only emit one color), lithography systems used to make semiconductor devices, and display screens (which use only primary colors).
 
To learn more, see the full article at http://bit.ly/1JVuWZG.
May 18, 2015. (Originally published by Caltech). Building on their creation of the first-ever mechanical device that can measure the mass of individual molecules, one at a time, a team of Caltech scientists and their colleagues have created nanodevices that can also reveal their shape.
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Some more information about the Nepal earthquakes.
 
Unsettled Earth continues to rattle ‪#‎Nepal‬ - what triggered this week's ‪#‎earthquake‬?

Following the M7.8 on April 25th, a M7.3 earthquake hit Nepal again. Whilst the strength of the earthquake is less, the damage caused is still significant. So why did the land of the Himalayas see two devastating quakes over such a short period?

During April's earthquake, one of the fault systems which runs parallel to the Himalayas ruptured, releasing some of the stress which builds up as the Asian plate continues its movement northwards into the Eurasian plate. The fault system rupture eastwards from the epicentre for 150km. Analysis of the most recent data suggests that the most recent tremor occurred right at the eastern edge of this failure. Meaning that this second earthquake was almost certainly triggered by the stress changes caused by the first one.

The story, covered on the BBC Science pages, has a great infographic which compares the behaviour of the two earthquakes. Why not head over and take a more detailed look? egu.eu/809ESM

#earthquake #Nepal ‪#‎Nepalearthquake‬ ‪#‎sesimicity‬ ‪#‎stress‬ ‪#‎rupture‬ ‪#‎fault‬ ‪#‎Himalayas‬ ‪#‎platetectonics‬ ‪#‎geodynamics‬.
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It is World Biodiversity Day today! To celebrate, GEO and Ramsar announces that you may all participate in a webinar covering the topics Wetlands, Biodiversity and the role of Earth observations. 

I have the pleasure of working with the leading experts on these fields when I organize the very webinar! Yes, that is right. And like I said, it will be free and open for anybody with an interest in the topics. So make sure you have time to spend with us on June 18th 2015. 

Here is a short announcement I made on Science 2.0 : 
http://www.science20.com/planetbye/world_biodiversity_day_wetlands_biodiversity_and_the_role_of_earth_observations-155755
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Ok allayou  head to Santa  Barbara talk from there about diversity cause that spill can happen anywhere ! 
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Geology! Saltstraumen Norway. Awesome rock patterns made by nature! 
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Wetlands and Biodiversity test 2 with video and pdf
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+Bente Lilja Bye 'Au Natural' looks beautiful on you Bente' ...a Viking princess doesn't need anything but her golden locks. Let me know when to show up for the next webinar.    #loveit  
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GOCE - and the improved geoid derived from the data collected by GOCE - proved very useful. Here is an example related to sustainable energy resources.


http://www.esa.int/Our_Activities/Observing_the_Earth/GOCE/GOCE_helps_tap_into_sustainable_energy_resources
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Sadly, Burnett is right!
 
CNN's Erin Burnett shares her thoughts on the importance of women's voices in media. See what other inspiring journalists are saying: ow.ly/MC3iK ‪#‎Beijing20‬
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View towards Sandhornøya, Salten, Norway on a beautiful spring day in the High-North :-)
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More information on the Earthquakes in Nepal has been compiled by +European Geosciences Union.
 
A Magnitude 7.3 ‪#‎earthquake‬ has struck eastern ‪#‎Nepal‬.

Just two weeks after the 25th April 7.8M #earthquake struck western Nepal, the ground below Nepal shakes again.

The seismicity in the Himalaya region is a result of the continental collision of the India and Eurasia plates, which are converging at a relative rate of 40-50 mm/yr.

The boundary between the two plates is spread out over a relatively large area that ranges from the Indus-Tsangpo Suture Zone in the north to Main Frontal Thrust to the south. It is at the Indus-Tsangpo Suture Zone that Indian subcontinent collided into the Eurasia plate 40 million to 50 million years ago. Since then, the Indian plate has been pushing it's way northwards, crumpling the ground and creating the Himalaya Mountain Range. The collision of the land masses also means that stresses and pressure build up in the region. These are released in the form of earthquakes. The Himalaya Front includes numerous east-west trending, parallel fault structures along which the stress and strain which builds up in the region can be released. As a result, this region has the highest rates of seismicity and largest earthquakes in the Himalaya region. The area is also heavily populated amplifying the impact of ‪#‎earthquakes‬ in the region.

We've compiled a few links to resources and further information:

A news report of todays #earthquake via the BBC: egu.eu/55UFJ8

You can follow the events in the Himalaya live thanks to this BBC report (also includes some great maps): http://www.bbc.com/news/live/world-asia-32703129

The USGS has a detailed fact sheet about the tectonic setting and seismicity of the region: egu.eu/7XOUW5

There is information regarding the strength of today's earthquake also on the USGS website: egu.eu/9NSUHL

ESA's Sentinel satellite was used to assess the ground movement caused by the earthquake in April, here are some preliminary interpretations of the results: egu.eu/4RMLNX

You can also have a read of a Twitter conversation between a group of earthquake researchers shortly after the M7.8 Nepal earthquake: egu.eu/9X4YZL

Maps credits: USGS website & BBC News
Sketch of faults in the region: Ekbal Hussain, PhD researcher at the University of Leeds, UK.
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New earthquakes in the Himalayas today, the major one closer to Mt. Everest and thus on the east side of Kathmandu this time. There were also quakes in Afghanistan.

http://earthquake.usgs.gov/earthquakes/eventpage/us20002ejl#general_map
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Rhone from Lake Geneva 
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+Bente Lilja Bye  ... what a beautiful place on the river ... (agreed >  +Rocit Labs )  ;)
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Spring in Geneva! Picture taken on my way from a Geo meeting on capacity building at the WMO ( World meteorology organisation ) . Check out more on Earth observations at the Geo homepage http//:www.earthobservations.org 
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Owner BLB, scientist, science writer and for ever and ever an astrophysicist
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  • Norwegian Mapping Authority, ViaNova IT, The Research Council of Norway, Norwegian Synchrotron Research AS,
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碧珺
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BLB makes Climate & Classical and other cool R&D stuff
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Luxurious living on a healthy planet - science to the people
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Very friendly people in a positive atmosphere. Lift your mood and taste good kind of place. Recommendable. Unique, laidback and fun. (Humor in menu makes the waiting in line easier - the line tells me I am not the only one who like the place.
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