X-ray imaging of The Night Watch reveals previously unknown lead layer

Rembrandt may have used lead-rich oil to prep his canvas and protect it from humidity.

The Nightwatch, or Militia Company of District II under the Command of Captain Frans Banninck Cocq (1642)

Enlarge / Rembrandt's The Night Watch underwent many chemical and mechanical alterations over the last 400 years. (credit: Public domain)

Rembrandt's The Night Watch, painted in 1642, is the Dutch master's largest surviving painting, known particularly for its exquisite use of light and shadow. A new X-ray imaging analysis of the masterpiece has revealed an unexpected lead layer, perhaps applied as a protective measure while preparing the canvas, according to a new paper published in the journal Science Advances. The work was part of the Rijksmuseum's ongoing Operation Night Watch, the largest multidisciplinary research and conservation project for Rembrandt's famous painting, devoted to its long-term preservation.

The famous scene depicted in The Night Watch—officially called Militia Company of District II under the Command of Captain Frans Banninck Cocq—was not meant to have taken place at night. Rather, the dark appearance is the result of the accumulation of dirt and varnish over four centuries, as the painting was subject to various kinds of chemical and mechanical alterations.

For instance, in 1715, The Night Watch was moved to Amsterdam’s City Hall (now the Royal Palace on Dam Square). It was too large for the new location, so the painting was trimmed on all four sides, and the trimmed pieces were never found (although in 2021, AI was used to re-create the original full painting). The objective of Operation Night Watch is to employ a wide variety of imaging and analytical techniques to better understand the materials Rembrandt used to create his masterpiece and how those materials have changed over time.

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TikTok requires users to “forever waive” rights to sue over past harms

TikTok may be seeking to avoid increasingly high costs of mass arbitration.

TikTok requires users to “forever waive” rights to sue over past harms

Enlarge (credit: Anadolu / Contributor | Anadolu)

Some TikTok users may have skipped reviewing an update to TikTok's terms of service this summer that shakes up the process for filing a legal dispute against the app. According to The New York Times, changes that TikTok "quietly" made to its terms suggest that the popular app has spent the back half of 2023 preparing for a wave of legal battles.

In July, TikTok overhauled its rules for dispute resolution, pivoting from requiring private arbitration to insisting that legal complaints be filed in either the US District Court for the Central District of California or the Superior Court of the State of California, County of Los Angeles. Legal experts told the Times this could be a way for TikTok to dodge arbitration claims filed en masse that can cost companies millions more in fees than they expected to pay through individual arbitration.

Perhaps most significantly, TikTok also added a section to its terms that mandates that all legal complaints be filed within one year of any alleged harm caused by using the app. The terms now say that TikTok users "forever waive" rights to pursue any older claims. And unlike a prior version of TikTok's terms of service archived in May 2023, users do not seem to have any options to opt out of waiving their rights.

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Daily Deals (12-15-2023)

The Lenovo Tab M9 is a budget Android tablet with a 9 inch, 1340 x 800 pixel display, a MediaTek Helio G80 processor, 4GB of RAM, and 64GB of storage. When it launched earlier this year, it sold for $150. But it’s been on sale for discounted pri…

The Lenovo Tab M9 is a budget Android tablet with a 9 inch, 1340 x 800 pixel display, a MediaTek Helio G80 processor, 4GB of RAM, and 64GB of storage. When it launched earlier this year, it sold for $150. But it’s been on sale for discounted prices pretty much constantly during the holiday shopping […]

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Ethik: Papst warnt vor Risiken des KI-Einsatzes

Papst Franziskus hat in seiner jährlichen Neujahrsbotschaft zum Weltfriedenstag eine nachdenkliche Warnung vor den potenziellen Gefahren der KI ausgesprochen. (KI, Software)

Papst Franziskus hat in seiner jährlichen Neujahrsbotschaft zum Weltfriedenstag eine nachdenkliche Warnung vor den potenziellen Gefahren der KI ausgesprochen. (KI, Software)

Judge rejects Elon Musk’s attempt to avoid testifying in Twitter stock probe

Musk has to testify for SEC probe into whether he violated US securities laws.

Illustration of a stamp that prints the word

Enlarge (credit: Getty Images | Bet_Noire)

Elon Musk can't avoid testifying in an investigation into whether he violated federal securities laws, a magistrate judge said during a court hearing yesterday.

The Securities and Exchange Commission sued Musk in October to force him to testify for a third time in a probe related to purchases of Twitter stock he made before he bought the company. Musk responded in November by asking the court to block the SEC's subpoena, claiming the agency is "harassing" him, exceeding its authority to investigate, and making "overly burdensome" demands for "irrelevant evidence."

Musk's arguments were rejected during a hearing yesterday in US District Court for the Northern District of California. No formal ruling has been issued yet, but a magistrate judge made it clear she will rule in the SEC's favor if Musk doesn't appear for testimony.

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With the Heybike Ranger S, the S stands for scooter

A very fast and foldable e-bike with brake lights, directionals, and a horn.

Image of a foldable bicycle with a low seat and tall handlebars.

Enlarge (credit: John Timmer)

The arrival of e-bikes has blurred the lines between bicycles, mopeds, and scooters. Depending on what country or state you're in, some e-bikes can legally hit 45 km/hour (28 mph), yet they don't require a license, registration, or insurance, unlike their competitors. Whether that's a good or bad thing depends on whether the bike riders in your area ride like lunatics or not.

Regardless of how you feel about the state of things, it's definitely true that most e-bikes are relatively bike-like compared to mopeds and scooters, lacking things like brake lights, directionals, and other components that make navigating in urban environments a bit safer. Most, but not all. Heybike offers a number of scooter-substitute e-bikes that come with a powered horn, brake lights, directionals, and a zippy motor. As a bonus, they're foldable. We checked out its latest model, the $1,499 Ranger S.

A foldable heavyweight

Let's address one thing right away: In our review of the Ranger S's sibling (the Tyson), we ran into a number of mechanical problems that threatened to make the bike unusable. The only real issue we saw on the Ranger S was a rapidly fluctuating reading of battery capacity. Otherwise, the bike was solid.

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Reliable Robotics: Unbemanntes Frachtflugzeug hebt in Kalifornien ab

Eine unbemannte Cessna 208B Caravan ist kürzlich in Kalifornien abgehoben und hat damit einen weiteren Meilenstein für das Luftfahrtunternehmen Reliable Robotics markiert. (Luftfahrt, Flugzeug)

Eine unbemannte Cessna 208B Caravan ist kürzlich in Kalifornien abgehoben und hat damit einen weiteren Meilenstein für das Luftfahrtunternehmen Reliable Robotics markiert. (Luftfahrt, Flugzeug)

Asus unveils the first Chromebook powered by Intel Meteor Lake

Intel’s Meteor Lake chips aren’t just for Windows laptops (and handhelds). Asus has announced the first Chromebook with support for up to an Intel Core Ultra 7 165U Meteor Lake processor. The new Asus ExpertBook CX54 Chromebook Plus Enterp…

Intel’s Meteor Lake chips aren’t just for Windows laptops (and handhelds). Asus has announced the first Chromebook with support for up to an Intel Core Ultra 7 165U Meteor Lake processor. The new Asus ExpertBook CX54 Chromebook Plus Enterprise (CX5403) should be available in 2024. Asus doesn’t actually say when the laptop will be available, but Intel’s […]

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Rebel Moon – Teil 1: Netflix’ Antwort auf Star Wars ist ein Armutszeugnis

Keine Geschichte, keine Ideen und die Effekte sind auch nur in der ersten Viertelstunde gut. Warum Netflix’ Rebel Moon dennoch Sehnsucht nach einem zweiten Teil weckt. Eine Rezension von Daniel Pook (Netflix, Streaming)

Keine Geschichte, keine Ideen und die Effekte sind auch nur in der ersten Viertelstunde gut. Warum Netflix' Rebel Moon dennoch Sehnsucht nach einem zweiten Teil weckt. Eine Rezension von Daniel Pook (Netflix, Streaming)

Lichee Pad Max 4A is a 14 inch RISC-V tablet with a detachable keyboard (and removable processor-on-a-module)

The Lichee Pad Max 4A is a 2-in-1 tablet with a 14 inch, 2240 x 1400 pixel display, a detachable keyboard, and support for Debian Linux software. It’s also one of the only devices in this category powered by a RISC-V processor, thanks to a Sipee…

The Lichee Pad Max 4A is a 2-in-1 tablet with a 14 inch, 2240 x 1400 pixel display, a detachable keyboard, and support for Debian Linux software. It’s also one of the only devices in this category powered by a RISC-V processor, thanks to a Sipeed LM4A module with a T-Head TH1520 quad-core RISC-V processor. […]

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