Showing posts with label com. Show all posts
Showing posts with label com. Show all posts
Sunday, August 25
Life on Earth from one Ancestor
Scientists have rewritten the history of life on Earth with a new estimate for the age of LUCA, or the Last Universal Common Ancestor, who is generally acknowledged as the common ancestor of all living things, thanks to a ground-breaking study.
The study, which was published in Nature Ecology & Evolution, indicates that LUCA lived approximately 4.2 billion years ago, which is significantly closer to Earth's origin than previously thought.
LUCA, a common ancestor to all organisms and not the first life form, has been a controversial topic among scientists for centuries. Life fossil evidence goes back as far as 3.4 billion years, yet this study proposes that LUCA might be close to being the same age as the Earth. The genetic code and DNA replication, which are two of the vital biological processes, might have developed almost immediately after the planet was formed. READ MORE...
Thursday, February 15
Fusion Breakthrough to Create Computing Boom
NIF researchers achieved a nuclear fusion reaction that created more energy output than input, a historic first in energy research.
Peer review confirms the breakthrough, opening the door for developing practical fusion reactors capable of providing near-unlimited energy.
The availability of fusion energy could significantly accelerate progress in energy-intensive technologies such as artificial intelligence and quantum computing, potentially overcoming current energy bottlenecks.
A recent physics breakthrough that could serve as a proof-of-concept for the development of nuclear fusion reactors capable of producing near-unlimited energy has finally passed its official peer-review successfully.
On Dec. 5, 2022, a team of researchers at the United States National Ignition Facility (NIF) in California recorded data indicating that it had achieved a nuclear fusion reaction that created more energy than it took to produce. The reported results were the first of their kind.
In physics, this is sometimes colloquially referred to as a “free lunch,” meaning a nuclear fusion reactor could one day be scaled to the point where it is capable of producing near-unlimited energy. READ MORE...
A recent physics breakthrough that could serve as a proof-of-concept for the development of nuclear fusion reactors capable of producing near-unlimited energy has finally passed its official peer-review successfully.
On Dec. 5, 2022, a team of researchers at the United States National Ignition Facility (NIF) in California recorded data indicating that it had achieved a nuclear fusion reaction that created more energy than it took to produce. The reported results were the first of their kind.
In physics, this is sometimes colloquially referred to as a “free lunch,” meaning a nuclear fusion reactor could one day be scaled to the point where it is capable of producing near-unlimited energy. READ MORE...
Wednesday, August 2
Pentagon's Secretive Tech Agency
I
n 1957, the Soviet Union changed the night sky. Sputnik, the first satellite, was in orbit for just 22 days, but its arrival brought a tremendous set of new implications for nations down on Earth, especially the United States. The USSR was ahead in orbit, and the rocket that launched Sputnik meant that the USSR would likely be able to launch atomic or thermonuclear warheads through space and back down to nations below.
In the defense policy of the United States, Sputnik became an example of “technological surprise,” or when a rival country demonstrates a new and startling tool. To ensure that the United States is always the nation making the surprises, rather than being surprised, in 1958 president Dwight D. Eisenhower created what we now know as DARPA, the Defense Advanced Research Projects Agency.
Originally called the Advanced Research Projects Agency, or ARPA, ARPA/DARPA has had a tremendous impact on technological development, both for the US military and well beyond it. (Its name became DARPA in 1972, then ARPA again from 1993 to 1996, and it’s been DARPA ever since.)
How did DARPA start?
Sputnik is foundational to the story of DARPA and ARPA. It’s the event that motivated President Eisenhower to create the agency by executive order. Missiles and rockets at the time were not new, but they were largely secret. During World War II, Nazi Germany had launched rockets carrying explosives against the United Kingdom. These V-2 rockets, complete with some of the engineers who designed and built them, were captured by the United States and the USSR, and each country set to work developing weapons programs from this knowledge.
Rockets on their own are a devastatingly effective way to attack another country, because they can travel beyond the front lines and hit military targets, like ammunition depots, or civilian targets, like neighborhoods and churches, causing disruption and terror and devastation beyond the front lines. What so frightened the United States about Sputnik was that, instead of a rocket that could travel hundred of miles within Earth’s atmosphere, this was a rocket that could go into space, demonstrating that the USSR had a rocket that could serve as the basis for an Intercontinental Ballistic Missile, or ICBM. READ MORE...
n 1957, the Soviet Union changed the night sky. Sputnik, the first satellite, was in orbit for just 22 days, but its arrival brought a tremendous set of new implications for nations down on Earth, especially the United States. The USSR was ahead in orbit, and the rocket that launched Sputnik meant that the USSR would likely be able to launch atomic or thermonuclear warheads through space and back down to nations below.
In the defense policy of the United States, Sputnik became an example of “technological surprise,” or when a rival country demonstrates a new and startling tool. To ensure that the United States is always the nation making the surprises, rather than being surprised, in 1958 president Dwight D. Eisenhower created what we now know as DARPA, the Defense Advanced Research Projects Agency.
Originally called the Advanced Research Projects Agency, or ARPA, ARPA/DARPA has had a tremendous impact on technological development, both for the US military and well beyond it. (Its name became DARPA in 1972, then ARPA again from 1993 to 1996, and it’s been DARPA ever since.)
The most monumental achievement of DARPA is the precursor to the service that makes reading this article possible. That would be ARPANET, the immediate predecessor to the internet as we know it, which started as a way to guarantee continuous lines of communication over a distributed network.
Other projects include the more explicitly military ones, like work on what became the MQ-1 Predator drone, and endeavors that exist in the space between the civilian and military world, like research into self-driving cars.
Other projects include the more explicitly military ones, like work on what became the MQ-1 Predator drone, and endeavors that exist in the space between the civilian and military world, like research into self-driving cars.
What is the main purpose of DARPA?
The specific military services have offices that can conduct their own research, designed to bring service-specific technological improvements. Some of these are the Office of Naval Research, the Air Force Research Laboratory, and the Army’s Combat Capabilities Development Command (DEVCOM). DARPA’s mission, from its founding, is to tackle research and development of technologies that do not fall cleanly into any of the services, that are considered worth pursuing on their own merits, and that may end up in the hands of the services later.
The specific military services have offices that can conduct their own research, designed to bring service-specific technological improvements. Some of these are the Office of Naval Research, the Air Force Research Laboratory, and the Army’s Combat Capabilities Development Command (DEVCOM). DARPA’s mission, from its founding, is to tackle research and development of technologies that do not fall cleanly into any of the services, that are considered worth pursuing on their own merits, and that may end up in the hands of the services later.
How did DARPA start?
Sputnik is foundational to the story of DARPA and ARPA. It’s the event that motivated President Eisenhower to create the agency by executive order. Missiles and rockets at the time were not new, but they were largely secret. During World War II, Nazi Germany had launched rockets carrying explosives against the United Kingdom. These V-2 rockets, complete with some of the engineers who designed and built them, were captured by the United States and the USSR, and each country set to work developing weapons programs from this knowledge.
Rockets on their own are a devastatingly effective way to attack another country, because they can travel beyond the front lines and hit military targets, like ammunition depots, or civilian targets, like neighborhoods and churches, causing disruption and terror and devastation beyond the front lines. What so frightened the United States about Sputnik was that, instead of a rocket that could travel hundred of miles within Earth’s atmosphere, this was a rocket that could go into space, demonstrating that the USSR had a rocket that could serve as the basis for an Intercontinental Ballistic Missile, or ICBM. READ MORE...
Tuesday, February 28
China's Dominance in EV Batteries
Despite efforts from the United States and Europe to increase the domestic production of batteries, the market is still dominated by Asian suppliers.
The top 10 producers are all Asian companies.
Currently, Chinese companies make up 56% of the EV battery market, followed by Korean companies (26%) and Japanese manufacturers (10%).
The leading battery supplier, CATL, expanded its market share from 32% in 2021 to 34% in 2022. One-third of the world’s EV batteries come from the Chinese company. CATL provides lithium-ion batteries to Tesla, Peugeot, Hyundai, Honda, BMW, Toyota, Volkswagen, and Volvo.
Despite facing strict scrutiny after EV battery-fire recalls in the United States, LG Energy Solution remains the second-biggest battery manufacturer. In 2021, the South Korean supplier agreed to reimburse General Motors $1.9 billion to cover the 143,000 Chevy Bolt EVs recalled due to fire risks from faulty batteries.
BYD took the third spot from Panasonic as it nearly doubled its market share over the last year. The Warren Buffett-backed company is the world’s third-largest automaker by market cap, but it also produces batteries sold in markets around the world. Recent sales figures point to BYD overtaking LG Energy Solution in market share the coming months or years.
The Age of Battery Power
Electric vehicles are here to stay, while internal combustion engine (ICE) vehicles are set to fade away in the coming decades. Recently, General Motors announced that it aims to stop selling ICE vehicles by 2035, while Audi plans to stop producing such models by 2033.
Besides EVs, battery technology is essential for the energy transition, providing storage capacity for intermittent solar and wind generation.
As battery makers work to supply the EV transition’s increasing demand and improve energy density in their products, we can expect more interesting developments within this industry. READ MORE...
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