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🔗 Biography 🔗 Medicine 🔗 COVID-19 🔗 China 🔗 Biography/science and academia

Li Wenliang (Chinese: 李文亮; pinyin: Lǐ Wénliàng; 12 October 1986 – 7 February 2020) was a Chinese ophthalmologist who worked as a physician at Wuhan Central Hospital. Li warned his colleagues in December 2019 about a possible outbreak of an illness that resembled severe acute respiratory syndrome (SARS), later acknowledged as COVID-19. He became a whistleblower when his warnings were later shared publicly. On 3 January 2020, Wuhan police summoned and admonished him for "making false comments on the Internet". Li returned to work, later contracted the virus from an infected patient (who had been originally treated for glaucoma) and died from the disease on 7 February 2020, at age 33. A subsequent Chinese official inquiry exonerated him and the Communist Party formally offered a "solemn apology" to his family and revoked its admonishment of him.

🔗 Law 🔗 Literature 🔗 Sexology and sexuality

The small penis rule is an informal strategy used by authors to evade libel lawsuits. It was described in a New York Times article in 1998:

"For a fictional portrait to be actionable, it must be so accurate that a reader of the book would have no problem linking the two," said Mr. Friedman. Thus, he continued, libel lawyers have what is known as "the small penis rule". One way authors can protect themselves from libel suits is to say that a character has a small penis, Mr. Friedman said. "Now no male is going to come forward and say, 'That character with a very small penis, that's me!'"

The small penis rule was referenced in a 2006 dispute between Michael Crowley and Michael Crichton. Crowley alleged that after he wrote an unflattering review of Crichton's novel State of Fear, Crichton included a character named "Mick Crowley" in the novel Next. The character is a child rapist, described as being a Washington, D.C.-based journalist and Yale graduate with a small penis.

🔗 Religion 🔗 Visual arts 🔗 Buddhism 🔗 Asia

The Greco-Buddhist art or Gandhara art is the artistic manifestation of Greco-Buddhism, a cultural syncretism between Ancient Greek art and Buddhism. It had mainly evolved in the ancient region of Gandhara, located in the northwestern fringe of the Indian subcontinent.

The series of interactions leading to Gandhara art occurred over time, beginning with Alexander the Great's brief incursion into the area, followed by the Mauryan Emperor Ashoka converting the region to Buddhism. Buddhism became the prominent religion in the Indo-Greek Kingdoms. However, Greco-Buddhist art truly flowered and spread under the Kushan Empire, when the first surviving devotional images of the Buddha were created during the 1st-3rd centuries CE. Gandhara art reached its zenith from the 3rd-5th century CE, when most surviving motifs and artworks were produced.

Gandhara art is characterized by Buddhist subject matter, sometimes adapting Greco-Roman elements, rendered in a style and forms that are heavily influenced by Greco-Roman art. It has the strong idealistic realism and sensuous description of Hellenistic art, and it is believed to have produced the first representations of Gautama Buddha in human form, ending the early period of aniconism in Buddhism.

The representation of the human form in large sculpture had a considerable influence, both to the south in the rest of India, and to the east, where the spread of Buddhism carried its influence as far as Japan.

🔗 Climate change 🔗 Environment 🔗 Volcanoes

The 1808 mystery eruption was a large volcanic eruption conjectured to have taken place in late 1808, possibly in the southwest Pacific. A VEI-6 eruption, comparable to the 1883 eruption of Krakatoa, is suspected of having contributed to a period of global cooling that lasted for years, analogous to how the 1815 eruption of Mount Tambora (VEI-7) led to the Year Without a Summer in 1816.

🔗 United States 🔗 Soviet Union 🔗 Russia 🔗 Russia/technology and engineering in Russia 🔗 Russia/Russian, Soviet, and CIS military history

An explosively pumped flux compression generator (EPFCG) is a device used to generate a high-power electromagnetic pulse by compressing magnetic flux using high explosive.

An EPFCG only ever generates a single pulse as the device is physically destroyed during operation. They require a starting current pulse to operate, usually supplied by capacitors.

Explosively pumped flux compression generators are used to create ultrahigh magnetic fields in physics and materials science research and extremely intense pulses of electric current for pulsed power applications. They are being investigated as power sources for electronic warfare devices known as transient electromagnetic devices that generate an electromagnetic pulse without the costs, side effects, or enormous range of a nuclear electromagnetic pulse device.

The first work on these generators was conducted by the VNIIEF center for nuclear research in Sarov in the Soviet Union at the beginning of the 1950s followed by Los Alamos National Laboratory in the United States.

🔗 Environment 🔗 Disaster management 🔗 Energy 🔗 Pennsylvania 🔗 Mining

The Centralia mine fire is a coal-seam fire that has been burning underneath the borough of Centralia, Pennsylvania, United States, since at least May 27, 1962. Its original cause is still a matter of debate. It is burning in underground coal mines at depths of up to 300 feet (90 m) over an 8-mile (13 km) stretch of 3,700 acres (15 km²). At its current rate, it could continue to burn for over 250 years. It has caused most of the town to be abandoned: the population dwindled from around 1,500 at the time the fire started to 7 in 2013, and most of the buildings have been levelled.

🔗 Computing 🔗 Cognitive science 🔗 Computing/Computer science 🔗 Human–Computer Interaction

Fitts's law (often cited as Fitts' law) is a predictive model of human movement primarily used in human–computer interaction and ergonomics. This scientific law predicts that the time required to rapidly move to a target area is a function of the ratio between the distance to the target and the width of the target. Fitts's law is used to model the act of pointing, either by physically touching an object with a hand or finger, or virtually, by pointing to an object on a computer monitor using a pointing device.

Fitts's law has been shown to apply under a variety of conditions; with many different limbs (hands, feet, the lower lip, head-mounted sights), manipulanda (input devices), physical environments (including underwater), and user populations (young, old, special educational needs, and drugged participants).

🔗 Systems 🔗 Robotics 🔗 Systems/Cybernetics

The Johns Hopkins Beast was a mobile automaton, an early pre-robot, built in the 1960s at the Johns Hopkins University Applied Physics Laboratory. The machine had a rudimentary intelligence and the ability to survive on its own. As it wandered through the white halls of the laboratory, it would seek black wall outlets. When it found one it would plug in and recharge.

The robot was cybernetic. It did not use a computer. Its control circuitry consisted of dozens of transistors controlling analog voltages. It used photocell optics and sonar to navigate. The 2N404 transistors were used to create NOR logic gates that implemented the Boolean logic to tell it what to do when a specific sensor was activated. The 2N404 transistors were also used to create timing gates to tell it how long to do something. 2N1040 Power transistors were used to control the power to the motion treads, the boom, and the charging mechanism.

The original sensors in Mod I were physical touch only. The wall socket was detected by physical switches on the arm that followed the wall. Once detected, two electrical prongs were extended until they entered the wall socket and made the electrical connection to charge the vehicle. The stairway, doors, and pipes on the hall wall were also detected by physical switches and recognized by appropriate logic.

The sonar guidance system was developed for Mod I and improved for Mod II. It used two ultrasonic transducers to determine distance, location within the halls, and obstructions in its path. This provided "The Beast" with bat-like guidance. At this point, it could detect obstructions in the hallway, such as people in the hallway. Once an obstruction was detected, the Beast would slow down and then decide whether to stop or divert around the obstruction. It could also ultrasonically recognize the stairway and doorways to take appropriate action.

An optical guidance system was added to Mod II. This provided, among other capabilities, the ability to optically identify the black wall sockets that contrasted with the white wall.

The Hopkins Beast Autonomous Robot Mod II link below was written by Dr. Ronald McConnell, at that time a co-op student and one of the designers for Mod II.

🔗 Biography 🔗 Ukraine

Boris Tymofiyovych Romantschenko (Ukrainian: Борис Тимофійович Романченко; 20 January 1926 – 18 March 2022) was a survivor of the German concentration camps Buchenwald, Peenemünde, Dora and Bergen-Belsen. He was killed during the 2022 Russian invasion of Ukraine.

🔗 Automobiles

The Electro Gyro-Cator was claimed to be the world's first automated commercially available automotive navigation system. It was co-developed by Honda, Alpine, and Stanley Electric Co..

Unlike most navigation systems of today, it did not use GPS Satellites to maintain its position and discern movement of the vehicle. Rather, it was an Inertial navigation system, because it contained a helium gas gyroscope that could detect both rotation and movement. A special servo gear was also attached to the transmission housing to feed information to the Gyro-Cator to help maintain position, map speed and distance traveled.

Transparent maps were placed inside the unit and it would scroll them past a 6 inch monochrome CRT illuminated screen as the car traveled along. The monitor would indicate by a series of circles (or cross hairs) on the screen to show the vehicle's current location or display lines for path of travel. A marking pen was also included to help make personal indicators on the map if needed. Adjustments could be made to change the display scale, position, rotation, brightness, and contrast. In its only year of production in 1981, it was announced as an option on that year's Honda Accord and Honda Vigor, but at ¥300,000 ($2,746 USD), it was almost a quarter of the value of the car. It is not clear how many units were actually sold to customers as a "dealer option". A patent for gyroscope design was introduced to the US in design patent D274332.

Documented weight for the unit was roughly 20 lb (9 kg). A display unit, with a cutaway of the Gyroscope, is currently shown at the Honda Collection Hall at Twin Ring Motegi, Japan.