Meet the hackers who, this weekend, will try to commandeer an actual orbiter as part of a Defcon contest hosted by the Air Force and the Defense Digital Service.
Many organizations will likely look to technology as they face budget cuts and need to reduce staff. “I don’t see us going back to the staffing levels we were at prior to COVID,” says Brian Pokorny, the director of information technologies for Otsego County in New York State, who has cut 10% of his staff because of pandemic-related budget issues. “So we need to look at things like AI to streamline government services and make us more efficient.”
For 23 years, Larry Collins worked in a booth on the Carquinez Bridge in the San Francisco Bay Area, collecting tolls. The fare changed over time, from a few bucks to $6, but the basics of the job stayed the same: Collins would make change, answer questions, give directions and greet commuters. “Sometimes, you’re the first person that people see in the morning,” says Collins, “and that human interaction can spark a lot of conversation.”
But one day in mid-March, as confirmed cases of the coronavirus were skyrocketing, Collins’ supervisor called and told him not to come into work the next day. The tollbooths were closing to protect the health of drivers and of toll collectors. Going forward, drivers would pay bridge tolls automatically via FasTrak tags mounted on their windshields or would receive bills sent to the address linked to their license plate. Collins’ job was disappearing, as were the jobs of around 185 other toll collectors at bridges in Northern California, all to be replaced by technology.
Free radicals—atoms and molecules with unpaired electrons—can wreak havoc on the body. They are like jilted paramours, destined to wander about in search of another electron, leaving broken cells, proteins and DNA in their wakes.
Hydroxyl radicals are the most chemically aggressive of the free radicals, surviving for only trillionths of a second. They form when water, the most abundant molecule in cells, is hit with radiation, causing it to lose an electron. In previous research, a team led by Linda Young, a scientist at the Department of Energy’s Argonne National Laboratory, observed the ultrafast birth of these free radicals, a process with great significance in fields such as sunlight-induced biological damage, environmental remediation, nuclear engineering, and space travel.
Now her team, including researchers from DOE’s SLAC National Accelerator Laboratory, has teased out a unique chemical fingerprint of the hydroxyl, which will help scientists track chemical reactions it instigates in complex biological environments. They published their results in Physical Review Letters in June.
A team of physicists has devised a simple way to measure the duration of a bizarre phenomenon called quantum tunneling.
The U.S. Air Force on Friday awarded rocket builders United Launch Alliance and SpaceX contracts worth billions to launch national security missions for five years starting in 2022.
The awards represent the second phase of the military’s National Security Space Launch program, which is organized by the Air Force’s Space and Missile Systems Center in Los Angeles, California. Four companies — Elon Musk’s SpaceX, ULA, Northrop Grumman and Jeff Bezos’ Blue Origin — bid for the contracts, with the military set to spend about $1 billion per year on launches.
The NSSL awards represent nearly three dozen launches, scheduled between 2022 and 2026. ULA won 60% of the launches, and SpaceX won the remaining 40%.
Just like a nostalgic grandparent flipping through old photo albums, our brains constantly replay memories from past events in our lives as we sleep.
It may seem overly sentimental at first, but our minds aren’t just looking to reminisce and remember the good times. All of that brain activity while dreaming serves to strengthen and preserve existing memories, all while simultaneously finding some room for any new memories we may have made over the previous day.
Those are the main findings from a fascinating new study just released by the University of California, San Diego that investigated neural activity during sleep. The research team at UCSD says that no memory is set in stone within our minds; any memory can be lost, and sleep is when our minds rejuvenate old memories via replay and refine/make room for new memories.
The Starship, SpaceX’s under-construction ship destined for the moon and Mars, has taken its first flight.
Astronomers have long suspected a city-sized neutron star hides within the dusty shroud of SN 1987A. And now, they’re closer than ever to proving their case.
But the extraordinary sight of a nearby supernova lingering in Earth’s night sky isn’t the only thing SN 1987A bestowed upon us. It also gave astronomers an unprecedented opportunity to investigate what triggers supernovae, as well as how such powerful blasts ripple through their surroundings. In fact, we can see the shockwave from SN 1987A still speeding outward today, interacting with clouds of dust that encircle the original site of the cosmic explosion.
When the Covid-19 pandemic made face masks an everyday essential, Japanese startup Donut Robotics spotted an opportunity. They created a smart mask — a high-tech upgrade to standard face coverings, designed to make communication and social distancing easier.
In conjunction with an app, the C-Face Smart mask can transcribe dictation, amplify the wearer’s voice, and translate speech into eight different languages.
The cutouts on the front are vital for breathability, so the smart mask doesn’t offer protection against the coronavirus. Instead, it is designed to be worn over a standard face mask, explains Donut Robotics CEO Taisuke Ono. Made of white plastic and silicone, it has an embedded microphone that connects to the wearer’s smartphone via Bluetooth. The system can translate between Japanese and Chinese, Korean, Vietnamese, Indonesian, English, Spanish and French.
A team of scientists at the University of Central California has developed a new kind of laser beam that transports messages in ‘wave packets’ and doesn’t follow the regular laws of light physics.
