Tech

Planetary scientists solve mystery of rare metal discovered by NASA rover on Mars 6 years ago 07-27-2022 | 06:00

Published

1 year ago

July 27, 2022

علماء الكواكب يحلون لغز معدن نادر اكشفته مركبة ناسا على المريخ منذ 6 سنوات 27-07-2022

A team of planetary scientists has come up with an explanation that could solve a mystery that has baffled the scientific community since 2016, when the Curiosity rover discovered the rare mineral tritymite in Gale Crater on Mars.

Tridymite is a form of high-temperature, low-pressure quartz that is extremely rare on Earth, and it’s unclear how its enriched portion ended up in a Martian crater.

Scientists chose Gale Crater as the landing site for NASA’s Curiosity because it may have contained ancient liquid water. The craft recently discovered evidence that Gale Crater was a lake a billion years ago.

“The discovery of tridiimide in the rock is one of the most surprising observations Curiosity has made during its 10-year Mars mission,” said Christine Seebach, assistant professor in Rice University’s Department of Earth, Environmental and Planetary Sciences, co-author of the study published online in the journal Earth and Planetary Science Letters, and mission specialist for NASA. mud in. Tridymite is usually associated with advanced, eruptive volcanic systems composed of quartz on Earth, but we found it at the bottom of an ancient lake on Mars, where most of the volcanoes are much older.

Seebach and his colleagues began by reevaluating the data from every report of tridimite on Earth.

The team reviewed volcanic material from Martian volcano samples and re-examined sediment evidence from Gale Lake. And they came up with a new scenario that fits all the evidence, namely that Martian magma stayed in a chamber beneath the volcano longer than usual, undergoing a partial cooling process called microcrystallization until more silicon became available.

In a major eruption, the volcano spewed additional silicon-rich ash over the Tridemite into Gale Crater Lake and surrounding rivers.

The water helped break down the ash through the natural processes of chemical weathering, and it also helped sort the weathered minerals.

This scenario is also illustrated by other geochemical evidence in the sample, including low concentrations of opaline silicate and aluminum oxide.

“It’s actually a direct evolution of other igneous rocks we’ve found in the crater,” Seebach said. We only saw this mineral once, and it was so thick in one layer that we argue that the volcano probably erupted at the same time as the lake. Although the particular sample we analyzed is not volcanic ash, it is weathered and water-sorted ash.

If a volcanic eruption like the one in Gale Crater had a lake, it would mean that the volcanoes erupted 3 billion years ago when Mars was moving from a wetter and warmer world to a drier one. And barren nature it is today.

“There is a lot of evidence for basaltic eruptions on Mars, but this is very sophisticated chemistry,” Seebach said. This work suggests that Mars may have a more complex and interesting volcanic history than we imagined before Curiosity.

Curiosity is still active on the Red Planet, and NASA is preparing to celebrate the 10th anniversary of its landing next month.

Stuart Wagner

“Professional coffee fan. Total beer nerd. Hardcore reader. Alcohol fanatic. Evil twitter buff. Friendly tv scholar.”

Tech

Bieber Brings “iMessage” to Android Devices Due to Apple’s Privacy Infringement

Published

4 hours ago

December 10, 2023

Stuart Wagner

Bieber Brings “iMessage” to Android Devices Due to Apple’s Privacy Infringement

Sunday 10 December 2023 / 13:04

Weeks after the failure of the NothingChats and Sunbird apps, the app Paper Mini announced the possibility of using iMessage for Android devices due to concerns about the privacy of users of Messages, an instant messaging service only available on Apple devices.

CNET.com, a website specializing in technology topics, notes that the Pepper Mini application is a successor to the original Pepper application, now named Pepper Cloud.

Like the original Sunbird or Paper applications, the Paper Mini application connects directly to the iMessage network without requiring a permanent connection to Apple Mac Mini devices. Therefore, the Pepper Mini does not require an Apple ID, although having this ID will allow the user to access the iMessage service via the Pepper Mini and Apple devices such as Macs and iPads.
Pepper says it supports several key features of iMessage using methods such as end-to-end message encryption, typing indicators, replying to posts and group chats.

Pepper was developed independently of Apple, and it is impossible to continue to offer all the features that Apple offers to iMessage users on iPhone smartphones and other devices manufactured by the American company.
Meanwhile, the original Pepper app has a waiting list of users who want to access it.

Original Pepper allows you to access the iMessage service using any Mac device while connected to another messaging app, such as WhatsApp.

Pepper Mini can be downloaded from Google’s Play Store without waiting, but the developer gets a $2 monthly subscription after a 7-day free trial period.

Stuart Wagner

“Professional coffee fan. Total beer nerd. Hardcore reader. Alcohol fanatic. Evil twitter buff. Friendly tv scholar.”

Tech

Microsoft examines Windows printer renaming problem: How it affects users

Published

12 hours ago

December 10, 2023

Stuart Wagner

Microsoft examines Windows printer renaming problem: How it affects users

By Mounis Hawass

Sunday, December 10, 2023 at 03:00 AM

Faces Windows 10 Windows 11 is a new problem because operating systems rename printers to HP LaserJet printers, and the technology company notes that the issue affects devices running Windows 10 and Windows 11 operating systems running the 22H2 update.

How does this issue affect users?

Because of this issue, printers connected to Windows devices automatically install the HP Smart app and are renamed even if they are not HP devices, and the tech company confirmed that it has already started investigating the issue.

Microsoft has suggested that this issue is not caused by an HP update, but instead is a Windows problem. However, this issue does not stop printers from printing, and Windows 10/11 users can continue printing, but users try to double-click on the printer and get a “no jobs for this page” error. Get the message.

In a support note, Microsoft says: “Some issues have been observed with printer configurations on Windows devices that access the Microsoft Store. Microsoft will investigate this issue and work with partners to resolve it. Manufacturer.” Most are named after the HP LaserJet M101-M106 model, and the printer icons can also be changed.

Unaffected printers

There are some workarounds to prevent printers from being automatically renamed and settings can be enabled. For example, if your IT administrator blocks the use of the Microsoft Store, printers will not be renamed. In such cases, the HP Smart app will not be installed automatically.

However, it’s important to note that this isn’t the first time Windows and printers have had problems with each other. In March 2021, a blue screen appeared on some printers on computers due to a Windows update, and Microsoft was able to act quickly. Fix the problem.

A few months later, a serious, unpatched flaw appeared in the Windows Print Spooler service. Fixing this security issue caused some printers to stop working completely. The latest renaming fix is expected to be much less problematic.

Stuart Wagner

“Professional coffee fan. Total beer nerd. Hardcore reader. Alcohol fanatic. Evil twitter buff. Friendly tv scholar.”

Tech

Set new GB WhatsApp update with fantastic specifications

Published

20 hours ago

December 9, 2023

Stuart Wagner

Set new GB WhatsApp update with fantastic specifications

GB WhatsApp Update GB WhatsApp application is considered as one of the most important applications relied on by millions around the world.Recently, a new version of the application has appeared, which is equipped with imaginative specifications that effectively meet the needs of users. And fans of this app are looking for a way to install it. Enjoy its new version.

New WhatsApp GB Update

One of the main features of the new update for the WhatsApp GB application is related to the ability to completely change the user interface. Users can choose the look of the app that suits them personally by changing colors, backgrounds or backgrounds. Even application icons. In addition, they users can control the size of the texts and customize them according to their personal preferences.

Hide and lock functionality is another great feature introduced in the new update for WhatsApp GB app. Users can now hide their private conversations and lock them with a code or fingerprint, increasing the confidentiality of content and protecting personal data.

Features of WhatsApp GB

For users who want to download video clips from WhatsApp posts, the new update gives them this ability easily and users can now save important or funny video clips on their phones without the need for external apps.

In terms of privacy, the new update for the WhatsApp GB app brings a new feature related to hiding appearances and not showing users the last seen time. The user can adjust these settings according to his personal preferences, reaching the highest levels. Privacy and Confidentiality.

New WhatsApp GB Updates

The new update to the WhatsApp GB application includes many additional features such as the ability to seamlessly send long messages, block notifications from unwanted people, and specify specific links that appear in group chats.

Stuart Wagner

“Professional coffee fan. Total beer nerd. Hardcore reader. Alcohol fanatic. Evil twitter buff. Friendly tv scholar.”