Near-zero-dispersion soliton and broadband modulational instability Kerr microcombs in anomalous dispersion
Microresonators based frequency combs, microcombs, have attracted huge interest in the last decades for their revolutionary performance of compact size, flexible comb spacing, and broad bandwidth. Wide applications of microcombs including optical fre.....»»
Astronomers scan hundreds of stars for "anomalous transits"
Telescopes have been collecting copious amounts of data on exoplanets in recent years. One of the most common datasets tracks what are known as transits, when an exoplanet crosses in front of its host star and dims the star's light slightly as it doe.....»»
Republicans slam broadband discounts for poor people, threaten to kill program
Thune, Cruz complain that discounts go to people who "already had broadband." Enlarge / Senate Minority Whip John Thune (R-S.D.) speaks to reporters after the weekly Senate Republican caucus lunch on November 14, 2023, in Washing.....»»
New plasma instability sheds light on the nature of cosmic rays
Scientists from the Leibniz Institute for Astrophysics Potsdam (AIP) have discovered a new plasma instability that promises to revolutionize our understanding of the origin of cosmic rays and their dynamic impact on galaxies......»»
Fractal photonic anomalous Floquet topological insulators to generate multiple quantum chiral edge states
An anomalous Floquet topological insulator (AFTI) is a periodically driven topological insulator (TI with nonzero winding numbers to support topological edge modes, though its standard topological invariants like Chern numbers are zero......»»
Cable lobby to FCC: Please don’t look too closely at the prices we charge
ISPs are scared about the FCC's plan to measure broadband affordability. Enlarge (credit: Getty Images | imagedepotpro) The US broadband industry is protesting a Federal Communications Commission plan to measure the affo.....»»
25M homes will lose broadband discounts if Congress keeps stalling, FCC warns
Funding calls get increasingly urgent as program would run out of money in April. Enlarge / Federal Communications Commission Chairwoman Jessica Rosenworcel during a House Energy and Commerce Committee Subcommittee hearing on Mar.....»»
An anomalous relativistic emission arising from the intense interaction of lasers with plasma mirrors
Interactions between intense laser pulses and plasma mirrors have been the focus of several recent physics studies due to the interesting effects they produce. Experiments have revealed that these interactions can generate a non-linear physical proce.....»»
Study: Climate change has increased atmospheric instability over past 40 years
While the impacts of climate change vary across the globe, most scientists agree that, overall, a warming environment is increasing both the frequency and intensity of severe weather events such as tornados and intense thunderstorms......»»
Minnesota turkey farmers say expanded rural broadband could help detect bird flu sooner
Just over 5 miles from where folklore has long claimed Vikings scribbled Scandinavian etchings on a runestone, Erica Sawatzke surveys thousands of chirping baby birds in her long barn......»»
Tapered fiber is a potential candidate for delivering high-energy, ultrafast lasers with high beam quality
Ultrafast lasers have the advantages of high time resolution, high energy density, broadband spectrum, etc. Ultrafast lasers with high-energy and high peak power have been widely applied in industrial fields and frontier science, such as advanced man.....»»
Internet providers say the FCC should not investigate broadband prices
ISPs say anti-discrimination rule should cover only deployment, not prices. Enlarge (credit: Getty Images | traffic_analyzer) Internet service providers and their lobby groups are fighting a US plan to prohibit discrimin.....»»
Researchers realize water-air acoustic communication based on broadband impedance matching
With increasing demand for exploration and utilization of marine resources, achieving direct and efficient communication between water and air has been an urgent need. Sound waves, as the only propagation way with low attenuation in both water and ai.....»»
Muon g-2 experiment measures the positive muon anomalous magnetic moment to 0.20 ppm
The Muon g-2 Collaboration is a large group of researchers at different institutes worldwide collaborating on the Muon g-2 experiment. This is a research effort aimed at exploring the interactions of muons, short-lived particles that are essentially.....»»
After big drop in ISP competition, Canada mandates fiber-network sharing
Bell claims it will cut fiber spending by $1 billion in protest of CRTC ruling. Enlarge (credit: Getty Images | Yuichiro Chino) In an attempt to boost broadband competition, Canada's telecom regulator is forcing large ph.....»»
UN report warns of catastrophic climate tipping points: California is nearing several
Humanity is on course to transgress multiple global "tipping points" that could lead to irreversible instability or the complete collapse of ecological and institutional systems, a United Nations report has warned......»»
Comcast starts delivering up to 2Gbps upload and download speeds in some regions
Broadband giant Comcast said it is beginning deployment of its fastest internet connectivity in select cities in the U.S. Broadband giant Comcast said it is beginning deployment of its fastest internet connectivity in select cities in the U.S.Rea.....»»
Creating a broadband diffractive graphene orbital angular momentum metalens by laser nanoprinting
Optical beams carrying orbital angular momentum (OAM) attract widespread attention and play an important role in optical data storage, optical communications, quantum information processing, super-resolution imaging, and optical trapping and manipula.....»»
Net neutrality’s court fate depends on whether broadband is “telecommunications”
We dig deep into how Supreme Court's "major questions doctrine" could affect FCC. Enlarge / FCC Chairwoman Jessica Rosenworcel speaks during the US Chamber of Commerce's Global Aerospace Summit in Washington, DC, on Wednesday, Se.....»»
Renewable energy through photo-electrochemistry
Photo-electrochemistry (PEC) holds the potential to convert renewable energy such as solar light into useful green fuels. However, most known PEC materials suffer from instability issues, which are difficult to track and cause a decrease in their per.....»»
Researchers invent a new metallization method of modified tannic acid photoresist patterning
The micro/nano metal pattern formation is a key step in the assembly of various devices. However, ex situ approaches of metal patterning limited their industrial applications due to the poor stability and dispersion of metal nanoparticles. The in sit.....»»