Submarines are valued primarily for their ability to hide. The assurance that submarines would likely survive the first missile strike in a nuclear war and thus be able to respond by launching missiles in a second strike is key to the strategy of deterrence known as mutually assured destruction. Any new technology that might render […]
Hollywood’s worst-case scenario involving artificial intelligence (AI) is familiar as a blockbuster sci-fi film: Machines acquire humanlike intelligence, achieving sentience, and inevitably turn into evil overlords that attempt to destroy the human race. This narrative capitalizes on our innate fear of technology, a reflection of the profound change that often accompanies new technological developments. However, […]
At the start of each year, IEEE Spectrum attempts to predict the future. It can be tricky, but we do our best, filling the January issue with a couple of dozen reports, short and long, about developments the editors expect to make news in the coming year. This isn’t hard to do when the project […]
For more than a decade now, OLED (organic light-emitting diode) displays have set the bar for screen quality, albeit at a price. That’s because they produce deep blacks, offer wide viewing angles, and have a broad color range. Meanwhile, QD (quantum dot) technologies have done a lot to improve the color purity and brightness of […]
Like many consumer technology professionals and members of the press, I had been planning to attend CES, the gigantic annual consumer electronics show, in person this year. That is, until about a week ago, when the current Covid surge made travel, dining out, and spending time indoors surrounded by large numbers of strangers seem like […]
With the Biden administration’s 2022 defense budget coming in at US $753 billion, it’s easy to get diverted by the megaton-sized sum that the United States plans to spend on modernizing its nuclear forces over the coming decades. But a bigger question about the future of nuclear deterrence arguably looms—namely, how might intercontinental ballistic missiles (ICBMs) affect national […]
We search the stars for signs of intelligent life. What if the stars were looking back, wondering the same thing about us? Austrian astrophysicist Lisa Kaltenegger has an idea of what that might mean, or at least where that perspective might be coming from: 2,034 stars, seven with known and confirmed exoplanents, either are, have been, […]
On the morning of 17 June, China launched the first astronauts to its Tianhe space station module, with a Long March 2F rocket sending the crewed Shenzhou-12 spacecraft into orbit. Overlooked from this major success, however, was that downrange from its Gobi Desert launch site, empty rocket stages fell to ground. As getting to orbit […]
Download this white paper to learn about beamforming and beam management techniques with massive MIMO antennas in 5G mmWave, and how to model and simulate using MATLAB toolboxes for efficient 5G NR beam management based on 3GPP-defined procedures.
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