Lee Labuschagne

An expert is someone who knows some of the worst mistakes that can be made in his subject, and how to avoid them. -- Werner Heisenberg

The most important equations in Physics and Mathematics 🧠

Today marks the birth anniversary of Henri Poincaré (1854–1912), a pioneering French mathematician, physicist, and philosopher of science. Renowned as "The Last Universalist", Poincaré made foundational contributions to celestial mechanics, topology, chaos theory, and the early development of special relativity. His work laid the groundwork for modern mathematical physics and influenced generations of scientists and thinkers.

What is consciousness? Is free will an illusion? And how does it manifest in the brain? These are questions that have fascinated scientists and philosophers for centuries. In our latest YouTube livestream, we explore the conscious mind with video stories and expert talks from the archive. Join us now at – youtube.com/live/rRQxLVP4N…

On February 18, 1930, after nearly a year of searching and examining millions of stars, Clyde Tombaugh noticed a tiny object that had moved between photographic plates taken in January of the same year. Further analysis and additional photographs confirmed the movement was consistent with an object orbiting beyond Neptune. This new celestial body was eventually named Pluto, a name suggested by an 11-year-old English schoolgirl, Venetia Burney, which aptly reflected the dark and distant nature of this newfound world. Tombaugh's approach to the search involved using a device known as a blink comparator. He would take pairs of photographs of the night sky several days apart, using a telescope specifically designed for the task. Each pair of photos would cover the same area of the sky. He would then use the blink comparator to rapidly switch back and forth between viewing the two photographs. By doing so, he could easily spot objects that had shifted position against the backdrop of fixed stars. This was a painstaking process, as each shift had to be checked to ensure it was not a star, asteroid, or comet. Tombaugh's discovery was a significant achievement, given the limitations of the technology at the time and the vast area of sky he had to cover. Pluto remained classified as the ninth planet in our solar system until 2006, when it was reclassified as a "dwarf planet" by the International Astronomical Union.

RECORD-BREAKING DETECTION: With the help of the MeerKAT telescope, a UP-led team of South African astronomers has detected the most distant hydroxyl megamaser ever, a natural radio “laser” produced by merging galaxies more than 8 billion light-years away. Read more: ow.ly/AauW50Yhsca Photo credit: South African Radio Astronomy Observatory #UPResearchMatters #MeerKAT

@UPTuks Well done to the team!

The Planck-Einstein relation ✍️ This equation changed how we understand light. It showed that energy is not a constant flow. Instead, it comes in separate packets. The energy of these packets depends entirely on the light's frequency, or its "color," rather than its brightness. This means that high-frequency radiation, like ultraviolet, has more energy per packet than low-frequency radiation, like infrared. This difference explains why various types of light interact with matter in unique ways. By connecting wave-like and particle-like behavior, this principle demonstrates that light behaves like a stream of photons, with each photon’s strength determined by its speed.

Terence Tao, born in 1975 in Adelaide, is widely regarded as one of the most brilliant mathematicians alive today and arguably the smartest person in the world, with a reported IQ of 230. At age 2, he was teaching 5-year-old children spelling and addition. By age 21, Tao received his Ph.D. from Princeton University. He soon joined UCLA and became a full professor at age 24.

NASA’s New Horizons spacecraft finally reached Pluto and showed us its true face, After traveling for nearly 9 years through deep space and covering about 3 billion miles, a breathtaking icy world with giant mountains, smooth frozen plains, and secrets no one expected.

Beyond Maths; a collection of fundamental laws, equations, and constants from physics and mathematics.

🚨 In a groundbreaking medical breakthrough, scientists have developed a universal antivenom that can protect against 17 different deadly snakebites, potentially revolutionizing emergency treatment in snakebite-prone regions around the world. Traditionally, antivenoms are species-specific, meaning doctors must identify the exact type of snake responsible for a bite before administering the correct antivenom, a challenge that often delays treatment and puts lives at risk. But this new formulation works across multiple venom types, neutralizing a wide range of toxins found in cobras, vipers, mambas, kraits, and other highly venomous snakes. Researchers used a novel approach by identifying shared venom components common proteins and enzymes found across multiple snake species. They then developed synthetic antibodies that target these shared toxins, offering broad protection with a single dose. In preclinical trials, the universal antivenom successfully neutralized venom from snakes found across Africa, Asia, and Latin America, dramatically improving survival rates in animal models. The team is now preparing for human trials, with hopes that the treatment could soon be used in rural clinics, military field kits, and emergency response systems. Beyond its life-saving potential, the new antivenom is also cheaper and easier to produce, since it doesn't rely on traditional methods that involve extracting venom and immunizing animals. This could make antivenom more accessible and affordable for low-income regions where snakebite fatalities remain alarmingly high. With over 100,000 deaths and 400,000 disabilities caused by snakebites each year, this innovation offers real hope and real protection for millions.

Amazing stuff...

Pictured: Someone who actually won a Nobel Peace Prize

A reminder about the Nobel Peace Prize medal

The many delivery drivers involved in serious accidents break my heart facebook.com/share/p/16thFi…

Cuteness overload

Fascinating

The latest book by Prof Letlhokwa Mpedi, Vice Chancellor and Principal of the University of Johannesburg (UJ) is now available. It was published by Tracey McDonald Publishers and I had the honour of editing it. #UJ #leadership #LeadershipInAction

In the past year, #NobelPeacePrize laureate Maria Corina Machado has been forced to live in hiding. Despite serious threats against her life she has remained in the country, a choice that has inspired millions of people. When authoritarians seize power, it is crucial to recognise courageous defenders of freedom who rise and resist. Democracy depends on people who refuse to stay silent, who dare to step forward despite grave risk, and who remind us that freedom must never be taken for granted, but must always be defended – with words, with courage and with determination. Read more about the 2025 Nobel Peace Prize: nobelprize.org/prizes/peace/2… #NobelPrize