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19 Aug 2024 - 04:28 am

Johannes Kepler thought he sketched Mercury orbiting across the sun. What he actually captured has solved a solar mystery
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German astronomer Johannes Kepler made sketches of sunspots in 1607 from his observations of the sun’s surface — and centuries later, the pioneering drawings are helping scientists solve a solar mystery.

Even though everything in the solar system revolves around the sun, scientists have yet to unlock many of the star’s secrets.
However, studying the variability of the sun over time, including the solar cycle, could answer some of the most longstanding questions about the fiery orb and how it changes.
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Some of those questions revolve around solar activity in the 17th century, which was a pivotal time for studying the sun.

Astronomers observed sunspots with telescopes for the first time in 1610. At the same time, the sun was making an unusual transition into an extended period of weakened activity. And Kepler’s long disregarded sketches, overlooked because they were drawings rather than telescopic observations, could provide crucial historical insights.

A new study that recreates the circumstances during which Kepler made his drawings appeared on July 25 in The Astrophysical Journal Letters.

“Kepler contributed many historical benchmarks in astronomy and physics in the 17th century, leaving his legacy even in the space age,” said lead study author Hisashi Hayakawa, assistant professor at Nagoya University’s Institute for Space-Earth Environmental Research, in a statement.

“Here, we add to that by showing that Kepler’s sunspot records predate the existing telescopic sunspot records from 1610 by several years. His sunspot sketches serve as a testament to his scientific acumen and perseverance in the face of technological constraints.”

The sun’s tumultuous activity
The sun experiences an 11-year cycle of waxing and waning activity, known as the solar cycle. Currently, scientists believe that the sun is reaching or nearing solar maximum, the annual peak of its activity for the current solar cycle, called Solar Cycle 25.

Solar maximum is typically associated with an increase in the number of sunspots visible on the sun’s surface. These dark regions, some of which can reach the size of Earth or larger, are driven by the sun’s strong and constantly shifting magnetic fields.

Today, scientists track solar activity using data from ground and space-based observatories, magnetic maps of the solar surface, and ultraviolet observations of the sun’s outer atmosphere.

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18 Aug 2024 - 11:18 pm

From the Dark Web to the Light: An Introduction to Tor and its Onion Links
Well, well, well, what do we have here? Are you ready for a ride down the rabbit hole known as the Dark Web? Oh, we know you are. And boy, do we have an interesting topic for you today. Yes, folks, we are talking about the infamous Tor .onion urls directories and the ever-changing list of sites that make up the elusive and mysterious underworld of the internet.

Now, if you're not sure what the Dark Web or Tor even are, let us give you a quick rundown. The Dark Web, also known as the Deep Web, is a part of the internet that is not indexed by traditional search engines and is only accessible through special software like Tor (The Onion Router). Tor uses complex encryption and routing to keep the user's identity and online activity anonymous.

But why would anyone want to access the Dark Web, you ask? Well, for some, it's a place to buy illegal goods like drugs, weapons, and even fake passports. For others, it's a place to safely communicate online without being monitored by governments or corporations. And for some, it's simply a place to explore the weird and the wicked.

And that's where the Tor .onion urls directories come in. These directories, also known as Tor links, are websites that can only be accessed through the Tor network. They usually have .onion at the end of their URLs instead of the typical .com or .org. Tor's Best Kept Secrets: Onion URLs You Need to Know




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Navigating the Dark Side of the Internet with Tor Link Directory and Onion Urls
If you're a frequent internet user or someone who loves to explore the deep web, then you might have heard about the term 'Tor' and its related terms like Tor .onion URLs, directories, and lists. Tor is an abbreviation of 'The Onion Router.' It's a network that helps people to browse the internet with anonymity by routing their online traffic through a series of nodes. However, the Tor network also provides access to the Dark Web- a part of the internet hidden from regular search engines.

Navigating the Dark Web can be a daunting task for many, but there are plenty of resources that could make it easier. One such resource is the Tor Wiki or the Hidden Wiki - a set of .onion URLs on the Tor network that are compiled by a team of volunteers. The Wiki is a central hub that provides access to different categories of Tor sites such as forums, marketplaces, blogs, social networks, and more.

The Wiki works like a directory where the URLs are sorted by categories and subcategories that makes it easier for users to find what they're looking for. Some popular categories on the Wiki include drugs, hacking, fraud, and hitmen-for-hire. However, it's important to note that there's also plenty of legal content on the Dark Web, and users should exercise caution when exploring the hidden sites.

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