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Before the Big Bang --Vestiges of a Prior Universe? (Weekend Feature)
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A Quest for the Dark Side and Better Astrophotography
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These Materials Could Make Science Fiction a Reality
Metamaterials, which could improve smartphones and change how we use other technology, allow scientists to control light waves in new ways.
Credit.James Yang
This article is part of our new series,
, which examines how rapid advances in technology are transforming our lives.
Imagine operating a computer by moving your hands in the air as Tony Stark does in “Iron Man.” Or using a smartphone to magnify an object as does the device that Harrison Ford’s character uses in “Blade Runner.” Or a next-generation video meeting where augmented reality glasses make it possible to view 3-D avatars. Or a generation of autonomous vehicles capable of driving safely in city traffic.
Written by AZoMFeb 18 2021
The electromagnetic echo of the Big Bang, called the cosmic microwave background (CMB), is a kind of radiation that has been moving through time and space ever since the birth of the very first atoms around 380,000 years after the evolution of the universe.
Left: One of the lenses developed by McMahon’s team is installed in a camera assembly. Top right: This shows a close-up view of the stepped pyramid metamaterial structure responsible for the lens’ antireflective properties. Bottom right: Members of the McMahon lab stand by recently fabricated silicon lenses. Image Credit: Jeff McMahon.
Plotting very small changes in the CMB informs researchers about the evolution of the universe and what it is composed of. Generally, to capture the cold, ancient light from the CMB, scientists employ dedicated telescopes that are integrated with ultrasensitive cameras for identifying millimeter-wavelength signals. These advanced cameras will feature up to 100,000 s
Metamaterial Tiles Perform in Vast Temperature Range, Support Highly Sensitive Measurements | Research & Technology | Jan 2021
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