Amid the many announcements made during Apple’s WWDC21 keynote, you may have missed the upcoming iOS and watchOS Accessibility features that support users with hearing, mobility, visual or cognitive challenges
A new quantum sensor can analyze the full spectrum of radio frequency and real-world signals, unleashing new potentials for soldier communications, spectrum awareness and electronic warfare.
Army researchers built the quantum sensor, which can sample the radio-frequency spectrum from zero frequency up to 20 GHz and detect AM and FM radio, Bluetooth, Wi-Fi and other communication signals.
The Rydberg sensor uses laser beams to create highly-excited Rydberg atoms directly above a microwave circuit, to boost and hone in on the portion of the spectrum being measured. The Rydberg atoms are sensitive to the circuit’s voltage, enabling the device to be used as a sensitive probe for the wide range of signals in the RF spectrum.
What is Blackboard? Everything you need to know about the online learning platform
Sophie PutkaDec 12, 2020, 08:51 IST
Blackboard is an increasingly common platform for online learning.Andreas Arnold/picture alliance via Getty Images
Blackboard Learn is a highly customizable online learning application that allows users to take or host online courses.
Students and teachers can interact using assignments, video conferencing, discussion groups, tests, and more in Blackboard Learn and its upgraded version, Ultra.
Blackboard s mobile apps and accessibility tools allow students to participate remotely and flexibly in classes.
Blackboard is a customizable online learning tool that can replace or supplement traditional face-to-face classes for a school or any other classroom structure. Many conventional classroom functions have equivalents in Blackboard Learn, allowing students and teachers to emulate just about every physical classroom experience element.