Scientists are exploring the use of chip-sized electron accelerators, according to a study in the journal Nature. The technology has potential near-term applications including radiation therapy for treating skin cancer, as well as longer-term applications such as new types of laser and light sources. Conventional particle accelerators are limited in size by the peak fields […]
Read more »
In the span of 10 years, Apple has made significant advancements in its mobile processors, multiplying the number of transistors by 19. This translates to an impressive rate of improvement of 34% per year or a doubling of transistors every 2.5 years. What’s even more remarkable is that the price of an iPhone has remained […]
Disappearing polymorphs, also known as perverse polymorphism, refer to the phenomenon in materials science where a stable crystal structure suddenly transforms into a polymorph, or a different crystal structure with the same chemical composition, during nucleation. This transformation is often irreversible and may be caused by contamination with microscopic seed crystals, making it difficult to […]
In this article, the author discusses the concept of the “blue ocean” strategy, which involves staking out a unique position in the market where competitors are not present. They highlight how Nintendo successfully implemented this strategy with the Wii by focusing on motion controls and a lower price instead of graphics power. The author then […]
Archaeologists have used declassified spy satellite imagery from the 1960s and 70s to reassess an early aerial archaeology survey conducted in the 1930s. The initial survey, published by Father Antoine Poidebard, identified a line of 116 Roman forts along the eastern frontier of the Roman Empire. However, the recent evaluation using satellite imagery revealed 396 […]
PiKVM is a simple and affordable Raspberry Pi-based DIY IP-KVM device that allows remote management of servers or workstations. It can be used to fix issues, configure BIOS settings, and reinstall operating systems using virtual CD-ROM or Flash Drive. The device supports Raspberry Pi models 2, 3, 4, and Zero2W, and offers features such as […]
The death of hundreds of elephants in Botswana and Zimbabwe has perplexed scientists and led to global speculation. After tests were finally conducted on the elephants in Zimbabwe, it was discovered that a little-known bacterium called Pasteurella Bisgaard taxon 45 was responsible for septicaemia, or blood poisoning, which caused their deaths. This bacterium has not […]
I am pleased to announce that the fourth edition of my book, Linear Algebra Done Right, is now available as an Open Access book. The electronic version of the book can be accessed for free worldwide. The fourth edition features numerous additions and improvements, including over 250 new exercises, over 70 new examples, and several […]
Every year, the debate over whether the atomic bombings of Hiroshima and Nagasaki in 1945 were justified resurfaces. Recent articles published by The New York Times and The Wall Street Journal present contrasting views on the issue. A former Los Alamos laboratory official argues that the bombings saved millions of lives, while a story about […]
Everyone loves $pi$. It’s usually the first irrational number someone encounters. $pi$ is conceptually simple enough that it can be explained with basic geometry. A circle with diameter 1 has a circumference of $pi$. $pi$ is the ratio between the circumference and the diameter. But why does $pi$ have to have that value? Could it […]