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Compact solid-state pulsed power generators achieve shorter, more powerful pulses — ScienceDaily

Powerful picosecond generators are in demand in various fields of experimental electrophysics to produce ultrashort electron beams and X-ray pulses in vacuum diodes and to form runaway electron flows in gases.

They also have applications in high-power microwave electronics, but researchers are constantly striving to obtain shorter and more powerful pulses.

In Review of Scientific Instruments, by AIP Publishing, scientists showed compact solid-state pulse generators could generate electrical pulses of less than one-billionth of a second in duration and up to 50 billion watts in power.

“For comparison, the most powerful hydroelectric power plant in China has an output power of 22.5 billion watts,” said Sergei Rukin, one of the authors.

Improving picosecond generators and mastering higher peak power levels in the picosecond range sets the groundwork for new applications in the coming years.

“This also happened with the development of powerful nanoscecond pulsed devices during the last 60 years,”

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Canon Announces Powerful New EL-1 Speedlite with Rechargeable Battery and EOS M50 Mark II Mirrorless Digital Camera; More Info at B&H

Photography News: Canon has released a powerful new Speedlite with a rechargeable battery, an LED modeling light and new Xenon bulb and EOS M50 Mark II mirrorless digital camera

B&H Photo is pleased to share that Canon has announced a new powerful on-camera flash unit with a Xenon bulb for consistent output and a rechargeable Li-ion battery that will enable up to 335 flashes per charge. Designed for professionals and advanced amateurs, the Canon Speedlite EL-1 provides a Guide Number of 197′ at ISO 100 and 200mm, which is comparable to that of the 600EX II-RT Speedlite.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20201013006173/en/

Canon EL1 Speedlite (Photo: Business Wire)

The new EL-1 has a range of 24-200mm with a fast recycling time of 0.1-0.9 seconds. It also features an LED Modeling Lamp with adjustable brightness and color temperature controls. With a fully charged battery, the

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AMD says RX 6000 Big Navi will be ‘by far the most powerful gaming GPU we have ever built’

AMD just announced its new Zen 3-powered Ryzen 5000 series CPUs, but CEO Lisa Su didn’t stop there, ending her presentation with a preview of AMD’s other big PC announcement: the company’s upcoming RX 6000 “Big Navi” GPUs, which it’s set to announce on October 28th.

While full details on the upcoming lineup of graphics cards won’t come until later in October, Su is setting expectations high, promising that the RX 6000 lineup offers “by far the most powerful gaming GPU we have ever built.”

Su also offered a brief preview of what to expect from the company’s top-of-the-line Ryzen 5000 CPUs working together with the new RX 6000 series GPUs, showing a short clip of Borderlands 3 running at 4K resolution at over 60fps at “Badass Quality,” along with benchmarks for Call of Duty: Modern Warfare (88fps for 4K gameplay at ultra settings) and Gears 5 (73fps for 4K

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New algorithm sharpens focus of world’s most powerful microscopes

New algorithm sharpens focus of world's most powerful microscopes
A composite image of the enzyme lactase showing how cryo-EM’s resolution has improved dramatically in recent years. Older images to the left, more recent to the right. Credit: Veronica Falconieri/National Cancer Institute

We’ve all seen that moment in a cop TV show where a detective is reviewing grainy, low-resolution security footage, spots a person of interest on the tape, and nonchalantly asks a CSI technician to “enhance that.” A few keyboard clicks later, and voila—they’ve got a perfect, clear picture of the suspect’s face. This, of course, does not work in the real world, as many film critics and people on the internet like to point out.


However, real-life scientists have recently developed a true “enhance” tool: one that improves the resolution and accuracy of powerful microscopes that are used to reveal insights into biology and medicine.

In a study published in Nature Methods, a multi-institutional team led by

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The Technology 202: Here are seven takeaways from the House’s sweeping report concluding Silicon Valley is too powerful

(Amazon chief executive Jeff Bezos owns The Washington Post). 

The report could provide a regulatory blueprint for lawmakers who have significantly ramped up rhetoric criticizing the tech giants in recent years, but have yet to actually pass any laws that would significantly check the industry’s power. The report’s authors, all Democrats, hope it will be a turning point for how Washington approaches corporate consolidation.

Congress must revive its tradition of robust oversight over the antitrust laws and increased market concentration in our economy,” the report said. 

Here are our top seven takeaways after sifting through the nearly 450-page report:

1. It proposes some most sweeping revisions to antitrust law in decades.

The report proposes changing existing laws in ways that could have far-reaching effects throughout the entire economy. The report recommends:

  • New limits on companies operating in adjacent lines of business, which could impact how tech companies operate
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Beirut Blast Ranks Among History’s Most Powerful Accidental Explosions

One of 16 videos of the Beirut blast used in the new study.
Gif: Borzou Daragahi/Twitter/Gizmodo

By analyzing videos uploaded to social media, scientists have calculated the strength of the blast that devastated the city of Beirut in August, finding it to be among the biggest non-nuclear explosions in human history.

When a warehouse at the Port of Beirut in Lebanon exploded this past summer, it released the equivalent of 500 tons of TNT and possibly as much as 1.12 kilotons of TNT, according to new research published in the scientific journal Shock Waves. That’s somewhere between 3% and 7% of the yield produced by the atomic bomb detonated at Hiroshima, which packed a blast yield equal to 15 kilotons of TNT. Accordingly, the explosion in Beirut now ranks among the 10 biggest accidental non-nuclear explosions of all time.

Around 2,750 tons of ammonium nitrate stored at Beirut’s port

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Alienware m15 R3 Review: A Quieter, Powerful Gaming Laptop

Alienware m15 R3

Thin and light gaming laptops are no longer a novelty, as practically every PC maker offers their own take on the category. Some of them don’t always stand-out from the crowd, however, and can push the envelope on thermals in ever-tighter chassis designs. That is most definitely not the case with Dell’s Alienware m15 R3 though, unless you want to compare it to last year’s Alienware m15 R2. At a passing glance, this year’s refresh looks just like last year’s model. That is not a bad thing, as the new m15 R3 is a head-turning laptop with some notable improvements to this newest iteration, including a revamped cooling solution.

Quite frankly, we are just fine with the overall physical design staying the same for another round. Dell had already given the m15 a complete facelift last year, ditching the gray digs and outdated aesthetic of the original model and dressing
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Alienware m15 R3 Review: A Quieter, Powerful Gaming Laptop – Page 4

Cooling is tricky business for laptops in general, and especially thinner and lighter designs with this kind of horsepower under the hood. To keep temps in check, Dell employed its “Cryo-Tech” cooling technology, which consists in part of “creative thermal module designs” as the company puts it. The Alienware m15 R3 also uses a new CPU vapor chamber cooling system on configurations that feature a GeForce GTX 1660 Ti or higher GPU.
For this latest iteration, Dell-Alienware made a few upgrades to the cooling scheme in general. There are 25 percent more fan blades over last year’s model, resulting in a 10 percent CFM (cubic feet per minute) jump in overall airflow. Dell also says it added 39 percent more weight in copper to the heat sink itself, to help dissipate more heat.
Alienware m15 R3 Noise Meter
Gaming laptops are not necessarily expected to be quiet machines, given their comparatively intense workloads (3D graphics).
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The climate science behind this year’s wildfires and powerful storms

At least 31 have died in the largest wildfires in California history. The east is defending itself against twice the usual number of tropical cyclones. And what may be the highest temperature ever recorded on Earth came in August in the United States. It’s a torrid 2020 and it was forecast 32 years ago. In the 1980’s, a NASA scientist named James Hansen discovered that climate change, driven by carbon emissions, was upon us. His graphs, of three decades ago, accurately traced the global rise in temperature to the year 2020. Last week, we had a lot of questions for Hansen. Are these disasters climate change? Do things get worse? Is it too late to do anything? But before we get to the causes, let us show you the effects.



a couple of people that are standing in front of a sunset: 60-firesarticle0.jpg


© Credit: CBSNews
60-firesarticle0.jpg

Climate scientists on 2020’s wildfires and storms

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Butte County, California, Volunteer

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