Lifeboat Foundation

(Phys.org)—By carefully arranging many nanoblocks to form pixels on a metasurface, researchers have demonstrated that they can manipulate incoming visible light in just the right way to create a color “meta-hologram.” The new method of creating holograms has an order of magnitude higher reconstruction efficiency than similar color meta-holograms, and has applications for various types of 3D color holographic displays and achromatic planar lenses.

The researchers, Bo Wang et al., from Peking University and the National Center for Nanoscience and Technology, both in China, have published a paper on the new type of hologram in a recent issue of Nano Letters.

The pixels on the new metasurface consist of three types of silicon nanoblocks whose precise dimensions correspond to the wavelengths of three different colors: red, green, and blue. To enhance the efficiency for the blue light, two identical nanoblocks corresponding to the blue light are arranged in each pixel, along with one nanoblock for red light and one for green light.

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Should all new technologies be used?

At the head of all this you will hear about the latest technology from the biotech world, such as CRISPR, that allows scientists to edit the very genome of a plant or animal, but not all technologies that can be used should be used.

While learning to grow massive quantities of organic food in urban landscapes without pesticides is great news, taking away human oversight from farming isn’t necessarily going to make our food better.

Continue reading “New Automation Technologies are Revolutionizing Farming” »

There are 110 million active landmines in the world. This drone is detonating them, one by one: http://kck.st/29RtcCo

This is how Facebook plans to blanket the entire earth in internet.

Technology developments will continue to transform every field of aerospace, just as they have the over the last 100 years.

AWESOME.

New UCLA research suggests that a gene-based immunotherapy that has shown promising results against cancer could also be used against HIV, the virus that causes AIDS.

In a study to be published in an August issue of the bi-monthly peer-reviewed Journal of Virology, researchers with the UCLA AIDS Institute and Center for AIDS Research found that recently discovered potent antibodies can be used to generate chimeric antigen receptors, or CARs, that can be used to kill cells infected with HIV-1.

Continue reading “Promising Cancer-Fighting Gene Immunotherapy Could Be Used Against HIV, UCLA Research Suggests” »

This Catalonian chemistry wiz is developing a jet-pack engine to deliver medicine inside our bodies.

Sure, chatbots are useful for service industries like hospitality and food delivery, but in health care? Some groups are testing the use of chatbots to retrieve medical information from within a messaging app. At first glance, that seems a bit impersonal, but a closer look reveals a wide range of use cases where bots could make your next visit to the hospital, doctor’s office, or pharmacy faster and more effective.

Let’s run this back a bit. If you’re not familiar with bots, here’s a brief explanation. Bots are software applications that run automated tasks or scripts that serve as shortcuts for completing a certain job, but they do it faster (a lot faster) and with verve. And in health care, we spend a lot of time spent generating and retrieving information.

By putting a trained army of bots inside an application — smartphone, desktop, whatever-top — health care workers can rapidly improve throughput by simply cutting out a bunch of steps. That’s something most care providers today would welcome, especially with millions of new people entering the system as a result of the Affordable Care Act and the aging of baby boomers. With the crush of increased data entry and new regulations, costs and rote work are skyrocketing.

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