The disturbing series of events during the summer of 2019 resulted in an investigation that made its way to the highest echelons of the Navy.
Multiple Destroyers Were Swarmed
Posted in military
Category: military – Page 134
The two companies, along with Westinghouse Government Services, were each given preliminary contracts of less than $15 million in March 2020 to begin design work. The final design is due to the Strategic Capabilities Office in 2022, at which point the Defense Department will make a decision on whether to move forward with testing the systems.
“We are thrilled with the progress our industrial partners have made on their designs,” Jeff Waksman, Project Pele’s program manager, said in a statement. “We are confident that by early 2022 we will have two engineering designs matured to a sufficient state that we will be able to determine suitability for possible construction and testing.”
The Pentagon has long eyed nuclear power as a potential way to reduce both its energy cost and its vulnerability in its dependence on local energy grids. According to a news release, the Defense Department uses “approximately 30 Terawatt-hours of electricity per year and more than 10 million gallons of fuel per day.”
Microgrids can connect and disconnect from the grid. By operating on normal “blue-sky” operating days as well as during emergencies, microgrids provide uninterrupted power when the grid goes down — and reduce grid constraints and energy costs when grid-connected. Previously the sole domain of military bases and universities, microgrids are growing 15% annually, reaching an $18 billion market in the U.S. by 2022.
For grid resiliency and reliable power supply, there is no better solution than community-scale microgrids that connect critical infrastructure facilities with nearby residential and commercial loads. Funding feasibility studies and audit-grade designs — so that communities have zero-cost but high-quality pathways to constructable projects, as New York State did with the NY Prize initiative — is a proven way to involve communities in their energy planning and engage the private sector in building low-carbon resilient energy systems.
Unpredictability and complexity are quickening, and technology has its place, but not simply as an individual safeguard or false security blanket. Instead, technology should be used to better calculate risk, increase system resilience, improve infrastructure durability and strengthen the bonds between people in a community both during and in between emergencies.
The $7.5 million investment for a new networked systems center of excellence comes as the Defense Department looks to advance its future joint war-fighting concept.
After successful tests of three subcomponents by the British company, now comes the hardest part: putting it all together.
Japan’s space agency wants to keep the satellite’s cameras out of military hands.
An unusual geopolitical situation is brewing aboard the International Space Station. Prior to the military coup in Myanmar earlier this year, Japan’s space agency JAXA had been collaborating with the country to build microsatellites that it planned to deploy in partnership with Myanmar’s government.
Now, JAXA has no idea what to do with the pair of 50-kilogram satellites, according to SlashGear. And while Japanese scientists hope to bring the agriculture and fishery-monitoring satellites to life, they’re currently holding them on the ISS instead of deploying them out of fear they might be misused for military purposes — a striking example of real-world geopolitics spilling over into space.
After the military coup in Myanmar, Teppei Kasai, the Asia program director for the group Human Rights Watch noted that it would be relatively straightforward to use the satellites’ Earth-facing cameras for military or surveillance purposes, according to SlashGear.
WASHINGTON — Stefanie Tompkins on March 15 assumed the top post at the Defense Advanced Research Projects Agency.
Tompkins is DARPA’s 23rd director.
She is a former military intelligence officer in the U.S. Army and previously worked at DARPA for nearly a decade. From 2007 until 2017 Tompkins served as program manager and deputy director of the agency’s Strategic Technology Office, DARPA chief of staff, as director of the Defense Sciences Office and as the acting deputy director of the agency.
Circa 2010
About 48 kilometers off the eastern coast of the United States, scientists from Rutgers, the State University of New Jersey, peered over the side of a small research vessel, the Arabella. They had just launched RU27, a 2-meter-long oceanographic probe shaped like a torpedo with wings. Although it sported a bright yellow paint job for good visibility, it was unclear whether anyone would ever see this underwater robot again. Its mission, simply put, was to cross the Atlantic before its batteries gave out.
Unlike other underwater drones, RU27 and its kin are able to travel without the aid of a propeller. Instead, they move up and down through the top 100 to 200 meters of seawater by adjusting their buoyancy while gliding forward using their swept-back wings. With this strategy, they can go a remarkably long way on a remarkably small amount of energy.
When submerged and thus out of radio contact, RU27 steered itself with the aid of sensors that registered depth, heading, and angle from the horizontal. From those inputs, it could dead reckon about where it had glided since its last GPS navigational fix: Every 8 hours the probe broke the surface and briefly stuck its tail in the air, which exposed its GPS antenna as well as the antenna of an Iridium satellite modem. This allowed the vehicle to contact its operators, who were located in New Brunswick, N.J., in the Rutgers Coastal Ocean Observation Lab, or COOL Room.
TOWARDS a METAMATERIALLY-BASED ANALOGUE SENSOR FOR TELESCOPE EYEPIECES jeremy batterson.
(NB: Those familiar with photography or telescopy can skip over the “elements of a system,” since they will already know this.)
In many telescopic applications, what is desired is not a more magnified image, but a brighter image. Some astronomical objects, such as the Andromeda galaxy or famous nebulae like M42 are very large in apparent size, but very faint. If the human eye could see the Andromeda galaxy, it would appear four times wider than the Moon. The great Orion nebula M42 is twice the apparent diameter of the Moon.
Astrophotographers have an advantage over visual astronomers in that their digital sensors can be wider than the human pupil, and thus can accommodate larger exit pupils for brighter images.
The common three-factor determination of brightness of a photograph (aperture, ISO, and shutter speed) should actually be five-factor, including what is often left out since it had already been inherently designed into a system: magnification and exit pupil. The common factors are.
Elements of a system: 1 )Aperture. As aperture increases, the light gain of a system increases by the square of increased aperture, so a 2-inch diameter entrance pupil aperture has four times gain over a 1-inch diameter entrance pupil and so on.
Elevators, Space Edition
Posted in business, government, military, space
Free conference covering the upcoming MOON ELEVATOR project: 9–11 March. Bringing together government, military, private industry, academia and others, this three day event is sure to be an eye opener on where we are and where we are going in the coming 5–10 years. Don’t miss out! Get your tickets free today.
- Gravitational Elevators (Lunar Space Elevator Infrastructure)
- Centripetal Elevators (Space Elevators from Earth).
We’ll look at both through the lens of.
1) hardware, 2) business, 3) outreach, and 4) framework.