Magic Link SDK is a software development kit that allows developers to easily integrate magic link functionality into their applications. A magic link is a secure authentication method that allows users to log into an application or website without needing a password. The Magic Link SDK provides a set of tools and resources that make it simple for developers to implement magic link functionality in their applications. This includes API endpoints, libraries, and documentation that guide developers through the process of integrating the SDK into their applications. By using the Magic Link SDK, developers can provide a more convenient and user-friendly authentication experience for their users. Instead of having to remember and enter a password, users simply click on a magic link that is sent to their email address.
We don’t know everything about our early ancestors—but we keep learning more! Paleoanthropologists are constantly in the field, excavating new areas with groundbreaking technology, and continually filling in some of the gaps about our understanding of human evolution.
erectus, or did it evolve from a smaller species, such as the early humans found in Dmanisi Republic of Georgia , or perhaps another early species of the genus Homo. A joint Indonesian-Australian research team found LB-1 a nearly complete female skeleton of a tiny human that lived about 80,000 years ago in Liang Bua cave on the island of Flores, Indonesia.
Instead of having to remember and enter a password, users simply click on a magic link that is sent to their email address. This simplifies the login process and eliminates the need for users to create and remember complex passwords. The Magic Link SDK also provides security features to protect against unauthorized access.
Hobbit's Brain Size Holds Clues About Its Ancestor
A new study supports the idea that the 'hobbit' was a result of island dwarfism.
By Ker Than for National Geographic News Published April 18, 2013 • 6 min read Share Tweet EmailDiseased ancestor or mini-me? The debate over where the so-called "hobbit," or Homo floresiensis, came from has raged since researchers discovered its remains on the remote Indonesian island of Flores (map) in 2003. Some researchers said its diminutive size was the result of disease, while others believed it descended from a small-bodied human ancestor.
But a new study, published April 17 in the journal Proceedings of the Royal Society B, says that clues to the hobbit-like human's ancestry lies in the size of its brain. The hobbit's gray matter is actually slightly larger than previously thought, according to the study's authors. (View the Flores hobbit's head and body reconstruction in this interactive.)
The so-called hobbit, which stood three feet (one meter) tall, lived on Flores until approximately 17,000 years ago. Previous studies examining H. floresiensis's skeleton ruled out the possibility of a disease called microcephaly as the cause of its small stature.
But if it was a new species of human, who was its ancestor?
One possibility is that the hobbit evolved from another small-bodied, small-brained early human, or "hominin," called H. habilis. The main problem with this theory is that there is no evidence that H. habilis ever made it to Southeast Asia, let alone Flores. (Explore the human evolutionary highway in this interactive.)
Other researchers have argued that H. floresiensis is descended from the larger-bodied H. erectus, widely considered to be the first hominin to leave Africa. Remains of H. erectus have been found throughout Asia, including on the Indonesian island of Java.
According to this hypothesis, H. erectus somehow made its way to Flores, where its descendants shrunk in size through a process called island dwarfism, in which species grow smaller to make the most of limited resources. (Related: "'Hobbits' Had Million-Year History on Island?")
"Some recent [animal] examples suggest that island dwarfism may be a fairly rapid process, [occurring] within a few thousand or even a few hundred years, but each case may be different," said study coauthor Yousuke Kaifu, a senior researcher at the National Museum of Nature and Science in Tokyo.
But critics of this theory have argued that the brain size difference between H. erectus and H. floresiensis—991 cubic centimeters (cc) and about 400 cc, respectively—represents an extreme and unprecedented example of island dwarfism. For comparison, modern humans have an average brain size of about 1,300 cc.
"Many recent researchers apparently suppose this is impossible," Kaifu said in an email.
But in their new study, Kaifu and his colleagues showed that the size gap is actually smaller than previously thought. Using a new high-resolution CT scanning technique, the team created a 3-D model of an 18,000-year-old H. floresiensis skull and calculated its brain volume to be about 426 cc.
The new estimate is only slightly larger than previous ones, but it makes the idea that H. erectus could have shrunk down to the size of H. floresiensis more plausible, especially if one supposes that the hobbit is descended from an older and smaller form of H. erectus that lived on Java, which had an average brain size of 860 cc.
"The 426 cc figure is interesting because … it becomes possible to explain this brain size entirely by body size reduction from … H. erectus specimens, without invoking further evolutionary or pathological reduction," said Kieran McNulty, an anthropologist at the University of Minnesota who was not involved in the study.
Smaller, But Not Dumber
In addition to measuring the hobbit's brain volume, Kaifu and his team also analyzed 20 different modern human populations, looking at the relationship between their brain size and body size. The team confirmed that the smaller an individual's body is, the smaller his or her brain is in general.
In fact, we "showed that this relationship is actually stronger than previously suggested," Kaifu said. Thus, "much of the brain size reduction from H. erectus to H. floresiensis can be explained by its body size reduction [alone]."
A shrinking brain does not necessarily mean diminished mental abilities, however. Some scientists have suggested that the brain of H. floresiensis underwent "neurological reorganization" as it shrank, so that the brain's functions are largely maintained even as it became smaller.
This could explain why the hobbit was able to use fire and wield stone tools to kill and butcher animals twice their size.
"We commonly associate larger brains with greater intelligence when comparing species," McNulty said in an email. But "the proportions of different parts of the brain and the number and arrangement of connections among those parts are [also] likely critical factors in determining intelligence."
A Third Candidate?
Dean Falk, an anthropologist at Florida State University who was not involved in the research, said Kaifu and his team have made a "compelling case" that the Flores hobbit is descended from H. erectus.
"I'm impressed," said Falk, who in an earlier study concluded that the brain volume of the hobbit was around 417 cc.
However, that research was done using less capable machines and at lower resolutions than the current study, she added.
"Their methods are better. Their machines are better. [So] I'll accept 426 cc instead of 417 cc," Falk said.
The anthropologist noted, however, that the new findings do not rule out the possibility that H. habilis—a smaller-bodied alternative to H. erectus—is the hobbit's ancestor.
Falk also raised a third possibility regarding Flores's mysterious inhabitants: Perhaps the hobbit wasn't descended from a member of the Homo genus at all, but rather was a shrunken member of a far older, and more ape-like, human ancestor known as an australopith that wandered out of Africa long ago. (Watch video about ancestral human variation.)
"You can't rule that out either," she said.
Kaifu and his team agreed that the hobbit's ancestry is far from resolved. "The question," the scientists write in their study, "will be answered most effectively by future discoveries of skeletal evidence for the first hominins to colonize Flores."
Flores Man was hardly formidable. His grapefruit-sized brain was two-thirds smaller than ours, and closer to the brains of today’s chimpanzees and transitional prehuman species in Africa than vanished 2 million years ago.
Magic links are unique and time-limited, meaning they can only be used once and expire after a certain period of time. This helps to ensure that only the intended recipient can use the magic link to log into the application. Overall, the Magic Link SDK offers a powerful and convenient solution for developers looking to implement passwordless authentication in their applications. It simplifies the login process for users while providing robust security measures to protect against unauthorized access. With the Magic Link SDK, developers can easily integrate magic link functionality into their applications and provide a seamless and secure authentication experience for their users..
Reviews for "Magic Link SDK vs. Traditional Password Authentication: Which is Better?"
1. John - 2/5 - I was really disappointed with the Magic Link SDK. The documentation was vague and difficult to understand, and it took me a lot of trial and error to get it working properly. Even then, the functionality was limited and didn't provide all the features I needed. Overall, I found it to be a frustrating experience and would not recommend it to others.
2. Sarah - 1/5 - The Magic Link SDK was a complete waste of time for me. I spent hours trying to integrate it into my app, only to find that it caused significant performance issues and slowed everything down. Not only that, but the support was virtually non-existent. I reached out for help several times and never received a response. It was a frustrating and ultimately pointless experience.
3. Mark - 2/5 - I had high hopes for the Magic Link SDK, but unfortunately, it fell short. The integration process was overly complicated and the documentation didn't provide enough guidance. Once I finally got it working, I noticed that it caused some compatibility issues with other parts of my application. Additionally, the lack of regular updates and improvements was disappointing. Overall, I expected more from the Magic Link SDK.
4. Emily - 2/5 - As a beginner developer, I found the Magic Link SDK to be quite overwhelming. The setup process was confusing and required a deep understanding of the underlying technologies. I struggled to find clear examples or sample code that could guide me through integration. It felt like the SDK was more suited for experienced developers, leaving beginners like myself frustrated and discouraged.