Techniques for imaging through scattering media are generally invasive, operate at microscopic scales or require a priori information. Here, the authors overcome these limitations by introducing confocal diffuse tomography, which captures the 3D shape of objects hidden behind scattering media.
Structural coloration techniques have improved display science due to their high durability in terms of resistance to bleaching and abrasion, and low energy consumption. Here, we propose and demonstrate an all-solid-state, large-area, lithography-free color filter that can switch structural color based on a doped semiconductor. Particularly, an indium-gallium-zinc-oxide (IGZO) thin film is used as a passive index-changing layer. The refractive index of the IGZO layer is tuned by controlling the charge carrier concentration; a hydrogen plasma treatment is used to control the conductivity of the IGZO layer. In this paper, we verify the color modulation using finite difference time domain simulations and experiments. The IGZO-based color filter technology proposed in this study will pave the way for charge-controlled tunable color filters displaying a wide gamut of colors on demand.
© 2020 Chinese Laser Press
Do you know that 1 Starship can carry 100 passengers at a time to MARS!!
But how many would be needed for million people??
Watch yourself!!
#ElonMusk
#SpaceX
#MarsExploration
#SpaceExploration
Do you know that 1 Starship can carry 100 passengers at a time to MARS!!
But how many would be needed for million people?? Watch yourself!! #ElonMusk #SpaceX #MarsExploration #SpaceExploration
Wouldn’t it be better to have a creature, something furry and warm that had the ability to produce perfect breast milk? A non-sentient, biological organism that has been engineered to produce milk nutritionally equivalent to mother’s milk? A milk Tribble? That type of technology would be awesome for babies.
Karl Schmieder: Is there a biological technology that you wished you had?
Andrew Hessel: I want the enzymatic DNA synthesizer that will be at least a thousand times better than what we have today. Next-generation sequencing technology massively accelerated our ability to read DNA. An enzymatic DNA synthesizer could be the equivalent accelerator for engineered biology. If you can synthesize DNA faster, then you can conduct more experiments and learn faster. That’s what I’d like to see. More people programming life.
In the past decade, researchers have engineered an array of new tools that control the balance of genetic inheritance. Based on CRISPR technology, such gene drives are poised to move from the laboratory into the wild where they are being engineered to suppress devastating diseases such as mosquito-borne malaria, dengue, Zika, chikungunya, yellow fever and West Nile. Gene drives carry the power to immunize mosquitoes against malarial parasites, or act as genetic insecticides that reduce mosquito populations.
Although the newest gene drives have been proven to spread efficiently as designed in laboratory settings, concerns have been raised regarding the safety of releasing such systems into wild populations. Questions have emerged about the predictability and controllability of gene drives and whether, once let loose, they can be recalled in the field if they spread beyond their intended application region.
Now, scientists at the University of California San Diego and their colleagues have developed two new active genetic systems that address such risks by halting or eliminating gene drives in the wild. On Sept.18, 2020 in the journal Molecular Cell, research led by Xiang-Ru Xu, Emily Bulger and Valentino Gantz in the Division of Biological Sciences offers two new solutions based on elements developed in the common fruit fly.
The soil bacteria breathe through ‘giant snorkels’ made of a special conductive protein, the researchers found.
Planets that come into close contact with white dwarfs are usually destroyed in the process. Why wasn’t this one?
Starlink Digital Illustration Created By: Erc X @ErcXspace via Twitter.
SpaceX is building its Starlink broadband internet satellite network in low Earth orbit. To date, the aerospace company has deployed 708 satellites out of the 4,409 that will initially make-up the network. Company officials state the main focus of the network will be to connect rural areas on Earth to the internet, areas where internet access is unreliable and inaccessible. Starlink customers will receive service from space via user terminals that look like a ‘UFO on a stick’. The wireless service will be easy to install at home, just ‘plug-in and point at sky.’
The company has not made public how much the internet service will cost per month. Regarding the pricing, SpaceX President Gwynne Shotwell told reporters last year – “All I know is you will be far happier with the value of the Starlink service than you are with your current service. You will, for sure, get way more bandwidth for the same price, or way more bandwidth for less…You’ll be far happier with this. The value will be far greater.” Starlink customers would be supporting missions to Mars; the revenue will provide additional funding towards the development of a Starship fleet that would enable humans to live on the Red Planet.
Amazon has unveiled its self-piloting Prime Air drone that the tech giant says will soon be used to fly packages directly to customers’ doors. Amazon will be conducting test delivery flights in the months ahead. NBC’s Tom Costello reports for TODAY. June 6, 2019.
