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Discover the secrets of semiconductor fabrication in a free online course offered by Purdue University, in collaboration with Intel, the University of Texas at Austin, and industry leaders. This course is tailored for both students and professionals, providing engaging lectures, hands-on experience in the vFabLab, and video tutorials. The self-paced course takes approximately 3 to […]
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A new quasi-satellite of Venus has recently been given an unusual name, Zoozve. The discovery of this quasi-moon was made by Brian Skiff, a research scientist at the Lowell Observatory, in 2002. The object appeared to orbit Venus but was actually in a complex and unstable orbit around both Venus and the Sun. This was […]
ORBIT is a powerful profiler for Windows and Linux that enables developers to identify performance bottlenecks and visualize the execution flow of complex applications. What sets ORBIT apart from other tools is that it doesn’t require any changes to the target process or code. It seamlessly provides profiling capabilities without the need for recompilation or […]
The default SSH port is 22, and this article explains the story behind how that port was chosen. The author, Tatu Ylonen, designed SSH in 1995 to replace telnet (port 23) and ftp (port 21). Port 22 happened to be conveniently between the ports for telnet and ftp, and Ylonen thought it would give the […]
This web content discusses the construction and design of a balancing cube called the “Cubli.” The cube, inspired by researchers at ETH Zürich and improved upon by others, uses clever controls and reaction wheels to balance on a corner and rotate around its axis. The author shares their experience and process of reverse-engineering and building […]
The author of this web content discusses the bus cycle timings and behavior of the Intel 8088 processor. They explain that the traditional model of a 4-cycle bus cycle time is incomplete and does not provide an accurate representation of the 8088’s operation. Instead, they propose a new model that accounts for additional pipeline states […]
In 2010, an IT support worker, known as ‘Zimmie,’ received a call from a large US specialty retailer about its VPN hardware that had stopped working. Upon investigation, Zimmie discovered that the problem was due to a certificate validation failure caused by an oversized certificate revocation list (CRL). The CRL had grown exponentially over the […]
In 2023, social networks like Twitter and Reddit changed their terms to exclude third-party experiences and put a price on their data, which they believe is valuable for training AI models. The move received mixed reactions from third-party developers who relied on these platforms. Twitter abruptly shut out third-party apps, while Reddit imposed high costs […]
In this web content, the author discusses the process of creating a touchscreen device using HID descriptors. They provide tools and instructions for capturing and parsing HID descriptors from a touchscreen, as well as interpreting the events received from the device. The author shares their personal experience of building a DIY USB-connected touchscreen by imitating […]
Sleep is not only essential for our physical and mental health but also has a significant impact on employment, productivity, and income. Research shows that each additional hour of sleep per week increases the probability of employment by 1.6 percentage points and weekly earnings by 3.4%. Lack of sleep is associated with various negative consequences, […]