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Calif. construction worker unofficially broke a fabled world record

news.ycombinator.com Lester Black 2025-09-20 22:45:31

It was a muggy July day in Santa Cruz and life could not have been more mundane for Alessandro “Alo” Slebir. The 24-year-old was pounding wooden concrete forms into a missing section of sidewalk. Cars raced by on a suburban highway as a neighbor walked over, looked at Slebir and asked, “Should I move my car?” “Hey, no worries, you’re fine! You’re not in the way,” Slebir said, in his characteristically friendly demeanor before returning to his hammer. You wouldn’t know it from the work boots or

Topics: mavericks said slebir surf wave

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New black hole merger bolsters Hawking area theorem

arstechnica.com Unknown 2025-09-28 05:41:19

Back in 1971, the late physicist Stephen Hawking made an intriguing prediction: The total surface area of a black hole cannot decrease, only increase or remain stable. So if two black holes combine, the newly formed black hole will have a larger surface area. This became known as Hawking's area theorem. Analysis of the gravitational signal from a black hole merger detected in January provides the best observational evidence to date in support of Hawking's theorem, according to a new paper publis

Topics: black gravitational hole ligo waves

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Study Directly Links Emissions from Fossil Fuel Producers to Devastating Heatwaves

gizmodo.com Ellyn Lapointe 2025-09-28 13:14:12

A new study directly links hundreds of major heatwaves since 2000 to the emissions from fossil fuel and cement producers. Among its fundings, the researchers conclude that as many as a quarter of all heatwaves since the start of this century would have been “virtually impossible” without emissions from any of the world’s 14 largest fossil fuel and cement producers. The study, published Wednesday in the journal Nature, shows that greenhouse gas emissions from 180 of the world’s biggest cement, o

Topics: change climate emissions heatwaves world

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iPhone 17 Pro reintroduces a glass cutout for 5G mmWave antenna on U.S. models

9to5mac.com Michael Burkhardt 2025-10-02 13:00:51

Apple introduced its iPhone 17 lineup today, and the new iPhone 17 Pro models include an interesting new design quirk that the company just got rid of with the iPhone 16 lineup: a glass cutout for 5G mmWave passthrough. This time though, it’s on the top of the phone. Ever since iPhone 12, Apple has included 5G mmWave support on the iPhones in the US, with the exception of iPhone 16e and the new iPhone Air. On iPhone 12 through 15, there was a glass cutout on the right side of the phone for thi

Topics: 5g apple glass iphone mmwave

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NASA Finds Evidence That Mars Devoured Huge Chunks of Other Planets

futurism.com Unknown 2025-10-10 08:00:06

The Red Planet has a bloody history. Newly examined data from NASA's retired InSight lander suggest that there may be giant chunks of rocky material deep inside the mantle of Mars, which were lodged there after a barrage of massive objects slammed into its surface some 4.5 billion years ago. Some of these smithereens are so large, the researchers say, that they're effectively protoplanets — moon-sized objects in the early stages of becoming a planet proper. In other words: Mars could be stuffe

Topics: mantle mars nasa planet waves

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My Secret Weapon for All-Season Campervan Adventures Is This Portable AC

cnet.com See Full Bio 2025-10-17 11:00:06

CNET's key takeaways The Wave 3 lists for $1,300, but often drops to $900. The optional battery pack adds between $550 and $900, depending on sales and deals. The Wave 3 offers enough cooling and heating for small spaces and does so reasonably quietly (it's still an air conditioner after all). While portable, the Wave 3 with the battery is fairly heavy at 55.1 pounds. A few years ago, I built a campervan out of a Ford Transit Connect. My goal when designing it was "tent replacement," not "ye

Topics: air battery outside van wave

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Best Window Air Conditioners 2025: 11 Picks to Cool You for Years

wired.com Julian Chokkattu 2025-10-23 17:29:35

The EcoFlow Wave 3 is not for the weak. I mean that literally, as it weighs nearly 56 pounds when attached to its 22-pound lithium battery. At 6,100 BTU cooling capacity, the Wave 3 is designed for a car, RV, tent, boat, or any space that might be either temporary or off the grid. The Wave 3 also has a slightly higher 6,800 BTU heat mode. I have a van and and a dog, so for me, the Wave 3 offers a specific type of assurance on hot or cold days. Portable doesn’t mean you can move it around a lot.

Topics: camping car degrees ecoflow wave

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The physics of parabolic microphones: Frequency dependence of gain (2023)

news.ycombinator.com Unknown 2025-10-25 00:42:10

Introduction Parabolic microphones are known for their extreme sensitivity, and the origin of their acuity isn’t difficult to guess. It is the most obvious thing about them, which can also make them a liability for field use, namely, their considerable size. Just as a large amount of weak light is captured by a telescope’s parabolic mirror and made amenable to viewing with the much smaller human eye, so too are faint sounds harvested with a reflecting dish that far exceeds the dimensions of our

Topics: aperture dish figure point waves

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How these two brothers became go-to experts on America’s “mystery drone” invasion

technologyreview.com Matthew Phelan 2025-10-26 06:00:00

By late January, the incoming Trump administration would assert that the entirety of the New Jersey drone wave had been benign, with each and every UAS “authorized to be flown by the FAA for research and various other reasons.” Their surety, however, stood in stark contrast to the warnings from top military brass, including the Air Force general at the head of NORAD, Gregory Guillot. In February, he testified to the Senate that approximately 350 drone incursions had been reported over a hundred

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The Physics of Parabolic Microphones: Frequency Dependence of Gain

news.ycombinator.com Unknown 2025-10-25 20:42:10

Introduction Parabolic microphones are known for their extreme sensitivity, and the origin of their acuity isn’t difficult to guess. It is the most obvious thing about them, which can also make them a liability for field use, namely, their considerable size. Just as a large amount of weak light is captured by a telescope’s parabolic mirror and made amenable to viewing with the much smaller human eye, so too are faint sounds harvested with a reflecting dish that far exceeds the dimensions of our

Topics: aperture dish figure point waves

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The Mysterious Shortwave Radio Station Stoking US-Russia Nuclear Fears

wired.com Justin Ling 2025-10-29 00:00:00

Shortly after US president Donald Trump hung up a call with Russia’s Vladimir Putin this spring, an obscure shortwave radio channel, broadcasting from a military base somewhere in Russia, sprang to life. Through a fog of static, at 4625 kHz on the shortwave dial, a man’s voice spoke in monotone: “Nikolai, Zhenya, Tatiana, Ivan.” He repeats the message—spelled out in the Russian phonetic alphabet—followed by a series of numbers and letters. The whole message reads: “NZhTI 01263 BOLTANKA 4430 952

Topics: 76 message radio shortwave station

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Tidewave Web: in-browser coding agent for Rails and Phoenix

news.ycombinator.com Unknown 2025-11-05 03:43:04

Today, we’re introducing Tidewave Web for Rails and Phoenix: a coding agent that runs directly in the browser alongside your web application, in your own development environment, with full page and code context. Unlike traditional coding agents that require constant back-and-forth, Tidewave Web knows your UI state, understands your framework, and runs within your actual development environment. No more describing what’s on your screen, copying stacktraces, or losing context between tools. Our

Topics: agent browser tidewave tools web

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Forecasters Warn of 100-Foot Waves as Hurricane Erin Brushes the East Coast

gizmodo.com Ellyn Lapointe 2025-11-07 04:45:06

The National Hurricane Center expects Hurricane Erin to grow in size as it creeps up the Eastern Seaboard this week, hammering coastal communities with potentially deadly storm surge and rip currents. Erin, one of the fastest rapidly intensifying Atlantic storms on record, is a Category 2 hurricane with maximum sustained winds of 110 miles per hour (175 kilometers per hour) as of 8:00 a.m. ET on Tuesday, August 19, according to the NHC. Forecasters don’t expect Erin to make landfall in the U.S.

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Passive Microwave Repeaters

news.ycombinator.com Unknown 2025-11-10 02:25:27

>>> 2025-08-16 passive microwave repeaters (PDF) One of the most significant single advancements in telecommunications technology was the development of microwave radio. Essentially an evolution of radar, the middle of the Second World War saw the first practical microwave telephone system. By the time Japan surrendered, AT&T had largely abandoned their plan to build an extensive nationwide network of coaxial telephone cables. Microwave relay offered greater capacity at a lower cost. When Japan

Topics: microwave passive repeater repeaters telephone

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Should you buy a portable AC to cool your home? My verdict after testing one this summer

zdnet.com Maria Diaz 2025-11-11 17:16:00

EcoFlow Wave 3 ZDNET's key takeaways The EcoFlow Wave 3 is a portable air conditioner and heater that costs $1,299 on its own and $2,299 with the add-on battery. This is a portable air conditioner and heater that is more powerful than its predecessor It is also off-grid ready for camping, RVing, and even helping in a pinch. The Wave 3 is pricey, loud in some settings, and is not as efficient in extreme heat, direct sun, or tent camping. $899 at Amazon Get more in-depth ZDNET tech coverage: A

Topics: air degrees ecoflow heat wave

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Best Microwaves of 2025, Tested and Reviewed

cnet.com See Full Bio 2025-11-11 15:00:00

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. In every kitchen, there are a handful of staples that make cooking, prepping and everything in between easier. For some, that may be a toaster oven, for others perhaps it's a blender or juicer. However, for me, there's one that stands out the most: the microwave. Whether you're simply reheating leftovers or prepping popcorn for a

Topics: best black microwave microwaves price

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This big stick solved my smart garden connectivity problems

theverge.com Jennifer Pattison Tuohy 2025-11-12 12:00:00

is a senior reviewer focused on smart home and connected tech, with over twenty years of experience. She has written previously for Wirecutter, Wired, Dwell, BBC, and US News. Posts from this author will be added to your daily email digest and your homepage feed. I recently installed the biggest smart home antenna I’ve ever seen, and it helped open up new areas in my smart home, from the attic to the chicken coop. The towering 12-inch-tall Home Assistant Connect ZWA-2, which launched this week

Topics: assistant devices home wave zwa

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Satellite Captures Awesome Power of Tsunami Triggered by Epic Russian Quake

gizmodo.com Ellyn Lapointe 2025-11-13 17:50:17

In late July, the sixth biggest earthquake in recorded history struck off the coast of Russia’s Kamchatka Peninsula. The magnitude 8.8 quake triggered a tsunami that sent waves across the Pacific, prompting widespread warnings and some evacuation orders. Data released Thursday, August 14, by NASA Earth Observatory captures this global event in striking detail. The Surface Water and Ocean Topography (SWOT) satellite, a joint venture between NASA and the French space agency CNES (Centre National

Topics: data nasa tsunami water waves

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Meta acquires AI audio startup WaveForms

techcrunch.com Rebecca Bellan 2025-11-25 17:24:04

In Brief Meta has acquired AI voice startup WaveForms for an undisclosed sum, The Information reports. It’s the company’s latest buy to strengthen its new AI unit, Superintelligence Labs, and Meta’s second major AI audio acquisition in the last month after it bought PlayAI. WaveForms, founded just eight months ago, raised $40 million from Andreessen Horowitz in a round that valued the company at $160 million pre-money, per PitchBook data. Two of the startup’s co-founders – former Meta and Ope

Topics: ai company linkedin meta waveforms

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6 ridiculous promises we were sold about 5G

androidauthority.com Unknown 2025-12-07 05:00:02

Kris Carlon / Android Authority Despite some speed and network coverage improvements, 5G hasn’t really lived up to the hype. You know it, I know it, and deep down, even the carriers know it. In fact, a few of the industry’s bigwigs would probably rather we all forget about some of the absolutely outlandish claims and overenthusiastic visions they tried to sell us about 5G. But the internet never forgets, so it’s time for us to play “where are they now” with some of the worst nonsense from the

Topics: 5g authority mmwave reality smart

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At 17, Hannah Cairo solved a major math mystery

news.ycombinator.com Kevin Hartnett 2025-12-08 16:35:40

Cairo followed this advice. In the fall of 2023, her family moved to Davis, 60 miles northeast of Berkeley. There, her older brother enrolled as a freshman at UC Davis, and her parents allowed her to commute to Berkeley on Tuesdays and Thursdays. By the spring, she was going five days a week and taking several more classes. She recalls it as a time in her life when she began to feel full of possibility. “I had started making friends, and I was feeling good,” she said. After the spring semester

Topics: cairo problem said waves zhang

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The Pacific Dodged a Monster Tsunami After One of the Biggest Quakes Ever. Here’s Why

gizmodo.com Alan Dykes 2025-12-09 08:55:52

The earthquake near the east coast of the Kamchatka Peninsula in Russia on July 30, 2025, generated tsunami waves that have reached Hawaii and coastal areas of the U.S. mainland. The earthquake’s magnitude of 8.8 is significant, potentially making it one of the largest quakes ever recorded. Countries around much of the Pacific, including in East Asia and North and South America, issued alerts and, in some cases, evacuation orders in anticipation of potentially devastating waves. Waves of up to

Topics: earthquake ocean plate tsunami waves

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Handwave lends a hand to retailers with its European alternative to Amazon’s palm payments

techcrunch.com Anna Heim 2025-12-10 04:00:00

Paying with a handwave once sounded like science fiction, but contactless palm recognition service Amazon One has already been used more than 8 million times, according to the company. That’s Amazon, though, which explains why it has been deployed in Amazon stores and more than 500 Whole Foods Market stores in the U.S., but only 150 third-party locations. Meanwhile, fintech startups like Latvia’s Handwave are stepping onto the field, aiming to provide third-party retailers with a similar but in

Topics: handwave like palm startup techcrunch

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Different Clocks

news.ycombinator.com Unknown 2025-12-19 12:05:47

Ianto Cannon's clock graphics These clocks are generated as scalable vector graphics using JavaScript. Feel free to use and modify the source code. Each clock displays the current Coordinated Universal Time (UTC): Loading… Binary This clock shows the Unix time: a 32-bit signed integer representing the number of seconds since 1970 Jan 1st. Polygons These polygons show the time in the format yy:M:w:d:h:mm:ss, where M is the month, w is the week in the month, and d is the day of the week. :

Topics: blobs clock graphics time waves

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Prepare to Celebrate 60 Years of ‘Star Trek’ With Nacelle’s Nostalgic Figures

gizmodo.com James Whitbrook 2025-12-20 23:00:28

Star Trek turns 60 next year, and the franchise is preparing to celebrate in style, especially with a brand new show on the way in Starfleet Academy. But outside of streaming, you’ll be able to celebrate in style with Nacelle’s new line of Star Trek action figures, which will dedicate a whole wave to the original series next year—and io9 has your first up-close look at one of them. As previously (and exclusively) revealed by io9 this past Friday, the third wave of Nacelle’s Star Trek line is se

Topics: action nacelle star trek wave

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Algorithm for simulating phosphor persistence of analog oscilloscopes

news.ycombinator.com Unknown 2025-12-17 20:56:30

Background to phosphor displays and analog oscilloscopes For all of you that have used analog oscilloscopes or other equipment with a phosphor display knows how beautiful the image can be from such displays. The color grading, which naturally occurs due to the persistence in the glow from the phosphor, also acts as a useful measurement on the signal integrity, such as how much noise there is and the shape/modulation of the underlying signal. Photograph of the display on a COS6100A analog oscil

Topics: data display phosphor time wave

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Reindeer Flee to Cities as the Arctic Bakes in Unprecedented Heatwave

gizmodo.com Natalia Mesa 2025-12-22 03:10:14

For two straight weeks, Finland has been roasting under record-high temperatures. The country is facing its most intense and persistent heatwave in its recorded history, which has brought beach weather to towns above the Arctic Circle. Friday marked the 14th consecutive day that at least one part of Finland reached a temperature above 86 degrees Fahrenheit (30 degrees Celsius), according to the Finnish Meteorological Institute. Local weather stations across the country have also reported record

Topics: celsius degrees finland heatwave temperatures

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Welcome to the Year of Hell With Nacelle’s New ‘Star Trek’ Action Figures

gizmodo.com James Whitbrook 2025-12-23 22:30:04

Nacelle’s new Star Trek line of figures may only just be getting ready to beam in, but we’re already chomping at the bit to see more of what the company has in store beyond a first wave of some truly delightful deep cuts. While we already know the lineup for wave two of the new line—revealed by none other than io9 ourselves back in March—now we can reveal two of our most anticipated figures in the plastic flesh. To celebrate San Diego Comic-Con (and Nacelle’s panel at the convention, happening

Topics: deep line nog trek wave

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Are portable AC units viable at home? My advice after testing one during a heat wave

zdnet.com Maria Diaz 2025-12-28 08:47:00

EcoFlow Wave 3 ZDNET's key takeaways The EcoFlow Wave 3 is a portable air conditioner and heater that costs $1,299 on its own and $2,299 with the add-on battery. This is a portable air conditioner and heater that is more powerful than its predecessor It is also off-grid ready for camping, RVing, and even helping in a pinch. The Wave 3 is pricey, loud in some settings, and is not as efficient in extreme heat, direct sun, or tent camping. $1,299 at Amazon Many parts of the US are sizzling righ

Topics: air degrees ecoflow heat wave

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Myanmar’s Devastating Earthquake in March Split the Earth at ‘Supershear Velocity’

gizmodo.com Margherita Bassi 2026-01-02 08:00:27

On March 28, Myanmar was rocked by a 7.8 magnitude earthquake that claimed over 5,000 lives and caused damage even in neighboring countries. In a study published July 10 in The Seismic Record, seismologists confirmed previous research indicating that the southern part of the large earthquake’s rupture, or fracture, took place at astounding speeds of up to between 3.1 and 3.7 miles per second (5 to 6 kilometers per second)—at supershear velocity. This likely played a role in the earthquake’s dev

Topics: earthquake fault rupture seismic waves

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Latest Tech News

Calif. construction worker unofficially broke a fabled world record

New black hole merger bolsters Hawking area theorem

Study Directly Links Emissions from Fossil Fuel Producers to Devastating Heatwaves

iPhone 17 Pro reintroduces a glass cutout for 5G mmWave antenna on U.S. models

NASA Finds Evidence That Mars Devoured Huge Chunks of Other Planets

My Secret Weapon for All-Season Campervan Adventures Is This Portable AC

Best Window Air Conditioners 2025: 11 Picks to Cool You for Years

The physics of parabolic microphones: Frequency dependence of gain (2023)

How these two brothers became go-to experts on America’s “mystery drone” invasion

The Physics of Parabolic Microphones: Frequency Dependence of Gain

The Mysterious Shortwave Radio Station Stoking US-Russia Nuclear Fears

Tidewave Web: in-browser coding agent for Rails and Phoenix

Forecasters Warn of 100-Foot Waves as Hurricane Erin Brushes the East Coast

Passive Microwave Repeaters

Should you buy a portable AC to cool your home? My verdict after testing one this summer

Best Microwaves of 2025, Tested and Reviewed

This big stick solved my smart garden connectivity problems

Satellite Captures Awesome Power of Tsunami Triggered by Epic Russian Quake

Meta acquires AI audio startup WaveForms

6 ridiculous promises we were sold about 5G

At 17, Hannah Cairo solved a major math mystery

The Pacific Dodged a Monster Tsunami After One of the Biggest Quakes Ever. Here’s Why

Handwave lends a hand to retailers with its European alternative to Amazon’s palm payments

Different Clocks

Prepare to Celebrate 60 Years of ‘Star Trek’ With Nacelle’s Nostalgic Figures

Algorithm for simulating phosphor persistence of analog oscilloscopes

Reindeer Flee to Cities as the Arctic Bakes in Unprecedented Heatwave

Welcome to the Year of Hell With Nacelle’s New ‘Star Trek’ Action Figures

Are portable AC units viable at home? My advice after testing one during a heat wave

Myanmar’s Devastating Earthquake in March Split the Earth at ‘Supershear Velocity’

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