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 ÂŁ23 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.
As the green submarines move underwater, they will also filter microplastics and microfibres out of the ocean, and collect information and data on ocean health and acidification via a number of onboard sensors.
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 â 12,000 kg more than the Airbus A330 MRTT and an almost 20-hour endurance.
âLockheed 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 Americaâs total mission success,â said Greg Ulmer, executive vice president Lockheed Martin Aeronautics. âThe LMXT combines proven performance and operator-specific capabilities to meet the Air Forceâs refueling requirements in support of Americaâs National Defense Strategy.â
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 worldâs 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 â 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 â particles with four or five quarks, instead of the conventional two or three â have been found. Todayâs discovery is of a particularly unique exotic hadron, an exotic exotic hadron if you like.
The Defense Advanced Research Projects Agency has announced the successful free flight test of an air-breathing hypersonic cruise missile demonstrator developed by Raytheon and Northrop Grumman. This comes more than a year after the announcement of successful captive-carry tests of this weapon, as well as a competing design from Lockheed Martin, as part of the Hypersonic Air-breathing Weapon Concept program, or HAWC.
The announcement of this test of the Raytheon/Northrop Grumman missile came earlier today in a press release, but the Defense Advanced Research Projects Agency (DARPA), working together with the U.S. Air Force, conducted it last week. The U.S. Navy was also involved in the test. DARPAâs official statement does not provide any update on any similar progress on the Lockheed Martin design.
Dr. Jennifer Garrison, PhD (http://garrisonlab.com/) is Assistant Professor, Buck Institute for Research on Aging, Founder & Faculty Director, Global Consortium for Reproductive Longevity & Equality (https://www.buckinstitute.org/gcrle/), Assistant Professor in Residence, Cellular and Molecular Pharmacology, UCSF and Adjunct Assistant Professor of Gerontology, USC Leonard Davis School of Gerontology.
Dr. Garrisonâs lab is interested in understanding how neuropeptides (a large class of signaling molecules which are secreted from neurons and transmit messages within the brain and across the nervous system) regulate changes in normal and aging animals as well in understanding how they control behavior at both the cell biological and neural circuit level.
Dr. Garrison received her PhD from the University of California San Francisco in Chemistry and Chemical Biology in the laboratory of Dr. Jack Taunton, where she discovered the molecular target of a natural product and elucidated a novel mechanism by which small molecules can regulate protein biogenesis. As a postdoctoral fellow in Dr. Cori Bargmannâs lab at the Rockefeller University, she showed that the nematode C. elegans produces a neuropeptide that is an evolutionary precursor of the mammalian peptides vasopressin and oxytocin, and mapped a neural circuit by which this molecule, nematocin, modulates mating behavior.
Dr. Garrison was named an Alfred P. Sloan Research Fellow and received a Glenn Foundation Award for Research in Biological Mechanisms of Aging in 2,014 and a Next Generation Leader at the Allen Institute for Brain Science in 2015. Her work is funded by the NIH National Institute of General Medical Sciences, the Glenn Foundation for Medical Research, the Alfred P. Sloan Foundation, and the Larry L. Hillblom Foundation.
Dr. Scott Gottlieb, the former FDA commissioner under President Trump, tells CNNâs Pamela Brown that the current Delta variant surge of coronavirus will likely finish running its course by the Thanksgiving holiday this fall.
We interviewed four longevity experts (including several Lifeboat Foundation board members) to learn how they think about their diets. I was particularly struck by how different they all were (except almost all of them fasted)!
Food.
In all our research into longevity so far, from quantifying how we sleep to exploring the science behind whether human life extension is possible, nutrition has remained the most controversial and confusing subject that weâve covered. For example, when we surveyed 101 of our readers on their longevity diet, we got 101 very different answers. There is little consensus on what the perfect life extension diet should look like.