Tag Archives: built

Scientists find evidence Stonehenge might have been built in Wales then moved

British archaeologists believe they have pinpointed the origins of the 5,000-year-old prehistoric Stonehenge ruin. 

A team of scientists, led by University College London’s Mike Parker Pearson, reported in the journal Antiquity on Friday that they had unearthed a stone circle in Wales’ Preseli Hills that they believe had been dismantled and moved 175 miles to Salisbury Plain and reconfigured as Stonehenge. 

MYSTERIOUS MONOLITH POPS UP NEAR TURKISH WORLD HERITAGE SITE

The “Waun Mawn” site — previously disregarded over the years — was found to have just four large bluestones left arranged in an arc. Pearson and his researchers uncovered evidence of an additional six holes that originally held a stone in 2018, giving rise to the theory that people had taken them as they migrated.

Upon measuring the diameter of the circular ditch at Waun Mawn, the group found that the ditches surrounding both sites shared identical diameters of about 360 feet across. 

In this Tuesday Dec. 17, 2013 file photo, visitors take photographs of the world heritage site of Stonehenge, England.
(AP Photo/Alastair Grant, File)

Waun Mawn — which appears to be Britain’s third-largest stone circle — and Stonehenge are the only two Neolithic monuments in Britain that conform to those specifications and examination of charcoal and sediment inside the holes suggested that Waun Mawn’s creation could be traced back to about 3,400 B.C.

In addition, the dimensions of the 43 bluestones at Stonehenge — many of which are buried — match the dimensions of the four at Waun Mawn and are the same type of rock as three of them.

One of the Stonehenge bluestones also has a cross-section that matches one of the gaps at Waun Mawn.

To further prove their connection, Pearson found that the entrance to both circles was aligned toward the midsummer solstice sunrise — though, the circle’s intended purpose remains shrouded in mystery.

Stonehenge was constructed in phases starting at around 3,000 B.C.

The Wiltshire county monument was built using both bluestones and newer and larger sarsen sandstones. 

Previous research over the last few decades showed that while the sarsen stones were brought from just 15 miles away in Marlborough, the bluestone pillars had been extracted from the Preseli Hills. 

In 2019, Pearson and his team provided evidence of the locations of two of the bluestone quarries, prompting them to look over Waun Mawn again.

Scientific analysis of human remains at Stonehenge indicated that some of them could have come from Wales, and further excavations are planned to try to understand more. 

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Pearson hypothesized both that Stonehenge was made to commemorate the ancestors of those who built it and that Stonehenge’s first stage may have served to unite the people of southern Britain. 

“Maybe most of the people migrated, taking their stones – their ancestral identities – with them, to start again in this other special place,” he said in a news release. “This extraordinary event may also have served to unite the peoples of east and west Britain.”

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Razer built a Thunderbolt 4 dock stuffed with ports and Chroma RGB lights

If you’ve been hunting for a Thunderbolt 4 dock for your new laptop, Razer has a new option for you to consider, simply called the Razer Thunderbolt 4 Dock. It’s loaded with ports, and of course, Chroma RGB lighting, too. Razer says it’s USB4 compliant, so it’ll be compatible with the next wave of fast peripherals and devices. It’s available for preorder through Razer for $329.99, which seems competitive for what it offers.

Taking a trip around this understated, matte black aluminum dock, its front hosts a fast UHS-II SD card slot, a 3.5mm headphone jack, and a single Thunderbolt 4 port to plug straight into your computer. On the back is where you’ll find most of the ports, including a barrel jack for its 135W power source, three Thunderbolt 4 ports for connecting displays and accessories (including support for Razer’s Core X external graphics card enclosure), a Gigabit Ethernet port, and three USB Type-A 3.1 Gen 2 ports.

The dock is 7.48 inches long, 2.93 inches wide, and just over an inch tall. It weighs three quarters of a pound.
Razer

The Thunderbolt 4 Dock can deliver 90W PD charging to laptops, and if you plan to connect external monitors to it, it can support up to two 4K screens with a 60Hz refresh rate, or one 8K display at 30Hz.

This dock is also compatible with Windows 10 laptops with Thunderbolt 3 ports, as well as recent MacBook Pro and Air models running macOS Big Sur and all of Apple’s M1-powered machines — all of which feature Thunderbolt 3.

Razer’s Thunderbolt 4 dock is almost a direct (but slightly more expensive) parallel to the Kensington SD5700T dock that my colleague Monica Chin checked out. It’s $289.99 and features the same amount of Thunderbolt 4 ports, plus one extra USB Type-A port. Razer’s option is a little more slim, lightweight, and flashy with its LEDs, but only you will know if that’s worth $40 more.

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Sirius XM satellite SXM-7 fails, built by Maxar and launched by SpaceX

  • A recently launched Sirius XM satellite suffered “failures” during in-orbit testing, the company said in a securities filing. It did not disclose the cause of the malfunction.
  • Maxar Technologies built the SXM-7 satellite, which SpaceX then launched in December.
  • A Sirius XM spokesperson told CNBC the cause of the failure was not related to the SpaceX launch of the satellite.
  • The spokesperson said Sirius XM is able to communicate with and maintain control of the satellite.

The SXM-7 satellite, built by Maxar Technologies for SiriusXM, is seen here in Maxar’s manufacturing facility in Palo Alto, Calif.

Maxar

A recently launched Sirius XM satellite suffered “failures” during preliminary testing in space, the company said in a securities filing Wednesday. It did not disclose the cause of the malfunction.

“During in-orbit testing of SXM-7, events occurred which have caused failures of certain SXM-7 payload units. An evaluation of SXM-7 is underway. The full extent of the damage to SXM-7 is not yet known,” Sirius XM said in the filing.

Maxar Technologies built the satellite, which SpaceX then launched in December. The satellite is designed to support Sirius XM’s digital satellite radio network, with an intended coverage area across the U.S., Canada and the Caribbean.

A Sirius XM spokesperson told CNBC the cause of the failure was not related to the SpaceX launch of the satellite. The spokesperson said Sirius XM is able to communicate with and maintain control of the satellite. Sirius XM declined to comment on whether it believed SXM-7 will be recoverable.

“SXM-7 was intended to supplement the existing fleet of SiriusXM satellites,” Sirius XM said in a statement. “Construction of our SXM-8 satellite is underway and that satellite is expected to be launched into a geostationary orbit later this year.”

Shares of Sirius XM had climbed as much as 24% earlier in the day but then gave up most of the gains, up about 7% in midday trading. Maxar’s stock fell as much as 8% from its previous close.

SpaceX declined CNBC’s requests for comment.

SpaceX launched the SXM-7 satellite on a Falcon 9 rocket on Jan. 4, with Sirius-XM beginning in-orbit testing of the satellite. The company said it does not expect its current satellite radio service will be impacted, with its XM-3 and XM-4 satellites operating normally and its XM-5 satellite standing by in orbit as a spare.

Maxar said in its own filing on Wednesday that it is assisting Sirius XM “in troubleshooting and diagnosing the situation to evaluate the extent of the damage to the SXM-7 satellite.”

“We’re working closely with Sirius XM to diagnose the problem and evaluate any potential damage to the satellite and its mission. Our focus remains on safely completing the commissioning of the satellite and optimizing its performance,” a Maxar spokesperson told CNBC in a statement.

Sirius XM said it has $225 million in aggregate insurance for SXM-7, which covers the satellite through launch and in its first year of operation in space.

“We have notified the underwriters of these policies of a potential claim with respect to SXM-7,” Sirius XM said.

A Falcon 9 rocket launches Sirius XM’s satellite SXM-7 in December 2020.

SpaceX

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