Lifeboat Foundation

The electric flying taxi is expected to operate at lower than 70 dBa.

As Australia turns to nuclear power for its submarines, a UK prototype will test the use of autonomous green hydrogen submarines for freight transport.

A world-first green submarine project will soon get underway after a proposal to power an autonomous underwater vessel with green hydrogen won a share of a United Kingdom £23 million funding program.

Start-up company Oceanways is to build a prototype of a zero emission submarine initially designed to deliver cargo in a twenty-foot container between Glasgow and Belfast.

Continue reading “Special delivery service: Green hydrogen submarines are on their way” »

Some improvements of the new model include a significantly improved range, fuel offload capacity, operational and combat-proven advanced camera and vision system, and upgraded communications system. The tanker will have 271,700 pounds (123,241 kg) of fuel capacity – 12,000 kg more than the Airbus A330 MRTT and an almost 20-hour endurance.

“Lockheed Martin has a long and successful track record of producing aircraft for the US Air Force, and we understand the critical role tankers play in ensuring America’s total mission success,” said Greg Ulmer, executive vice president Lockheed Martin Aeronautics. “The LMXT combines proven performance and operator-specific capabilities to meet the Air Force’s refueling requirements in support of America’s National Defense Strategy.”

In addition to better range and increased payload, the LMXT tanker is equipped with a proven fly-by-wire boom currently certified and used by allies to refuel US Air Force receiver aircraft in operations around the world, the world’s first fully automatic boom/air-to-air refueling (A3R) system, and open system architecture JADC2 (Joint All-Domain Command and Control) systems.

Today, the LHCb experiment at CERN is presenting a new discovery at the European Physical Society Conference on High Energy Physics (EPS-HEP). The new particle discovered by LHCb, labelled as Tcc+, is a tetraquark – an exotic hadron containing two quarks and two antiquarks. It is the longest-lived exotic matter particle ever discovered, and the first to contain two heavy quarks and two light antiquarks.

A tetraquark composed of two charm quarks and an up and a down antiquark (Image: D. Dominguez/CERN)

Quarks are the fundamental building blocks from which matter is constructed. They combine to form hadrons, namely baryons, such as the proton and the neutron, which consist of three quarks, and mesons, which are formed as quark-antiquark pairs. In recent years a number of so-called exotic hadrons – particles with four or five quarks, instead of the conventional two or three — have been found. Today’s discovery is of a particularly unique exotic hadron, an exotic exotic hadron if you like.