Science is all around you !

In this episode of Science is All Around You , we delve into the fascinating world of physics education using the one device almost everyone carries: a smartphone. Highlighting the untapped potential of these powerful tools, we explore how their built-in sensors and features can transform them into portable laboratories for mechanics, optics, sound, and electromagnetism. From determining the reson...

This episode focuses on Ice and Water. The conversation covers density, comparing various materials; calculating the speed of water from a faucet using a simple physics formula; and explaining why ice floats using molecular models. Further topics include Bernoulli's equation to determine air speed from a straw, the physics of Scrooge McDuck's frozen money bin, and the effects of salt on ice. Final...

In this episode of Science is All Around You , we dive into the lesser-known story of Albert Einstein’s early life, uncovering the experiences that shaped the mind of one of history’s greatest physicists.

This episode explores the science of influence, breaking down the psychological principles that drive persuasion and offering actionable strategies to increase your success in getting others to say "yes."

This episode delves into the intersection of scientific diplomacy, climate change, and misinformation. It highlights  ultracrepidarianism —people giving opinions outside their expertise—and its link to the  Dunning-Kruger effect , where individuals with low competence overestimate their abilities. These phenomena contribute to climate change misinformation, complicating consensus and solutions. Th...

Summary This episode provides a comprehensive overview of the history, physics, and technological development of lasers, from their theoretical foundations laid by Einstein to the most recent advancements in attosecond pulse generation and inertial confinement fusion. The podcast covers key figures and milestones in laser research, including the invention of the first laser by Maiman, the developm...

In this episode, we delve into the use of quantitative methods in social science and education research. Starting with Galileo's emphasis on mathematics, we explore the strengths and limits of quantitative research, techniques for data collection and analysis, and common statistical tests for comparing groups and testing hypotheses. We also touch on key sampling methods used in research.

In this episode, we explore the birth of quantum physics. We trace its historical development, from the discovery of the photoelectric effect to the foundational contributions of Max Planck and Albert Einstein. The episode highlights the shift from classical physics' idea of continuous energy to quantum theory's concept of quantized energy.

The episode explores mathematical models of opinion dynamics, focusing on how individual opinions and social influences interact. One study examines the impact of periodic propaganda in the Continuous Opinions with Threshold (COT) model, revealing that strategic timing can be more effective than constant propaganda. Another study adds a “death/birth” process to the COT model, showing how the influ...

In this episode, we delve into the transformative potential of heart coherence breathing exercises in school classrooms. Our discussion is based on a compelling research study conducted in La Réunion, where both teachers and students engaged in an eight-week heart coherence breathing programme. The findings are remarkable: teachers experienced significantly reduced stress levels and reported a mor...

This podcast describes a simple experiment that can be performed in a classroom to demonstrate the concept of apparent weightlessness in free fall. The author proposes using a transparent plastic container with toys and a feather to recreate the conditions of a weightless environment. The experiment aims to show students that apparent weightlessness isn't limited to outer space, as objects in free...

This episode discuss the increasing threat posed to current encryption methods by the development of quantum computers. The first source, from France-Science in USA, explains the White House’s efforts to combat this threat by transitioning to post-quantum cryptography (PQC) for sensitive communications. The source highlights the importance of PQC for national security and mentions the three new st...

In this episode, we dive into the intriguing world of Simpson's paradox , a statistical phenomenon that reveals how trends in an overall population can reverse when broken into subgroups. We explore how this paradox, more common than previously thought, can lead to misleading conclusions, affecting everything from research findings to public policy. Using real-world examples, we’ll discuss the dan...

The episode explores the history of the search for extraterrestrial life and examines the division between scientists and non-scientists in this field. It discusses how the "boundary work" performed by scientists to separate legitimate research from fringe perspectives can inadvertently alienate those outside the scientific mainstream, leading to mistrust and the perpetuation of conspiracy theorie...

This episode is about the phenomenon of "dancing peanuts" in beer, where peanuts move up and down in a glass due to the formation and detachment of bubbles on their surfaces. https://blog.univ-reunion.fr/alessioguarino/2023/06/15/the-physics-of-dancing-peanuts-in-beer/

This episode explores the often-overlooked fact that the true trajectory of a projectile on Earth is an ellipse, not a parabola, due to the Earth's spheroidal shape and the direction of gravitational acceleration. https://blog.univ-reunion.fr/alessioguarino/2024/09/27/physics-heresy-projectiles-dont-actually-make-parabolas/

In this episode, we explore a fascinating and practical application of mathematics—using integral calculus to solve the everyday problem of fairly sharing a watermelon. Based on a recent research article, this discussion highlights how mathematical concepts can be applied to real-world scenarios, making the subject more engaging and accessible. The episode delves into the geometric principles behi...

In this podcast episode, we explore the fascinating concept of collective intelligence, drawn from recent research on how groups can outperform individual members in solving complex problems. The study presents a mathematical model that explains how collective intelligence arises from the integration of individual members' knowledge, conceptualized as 'mental maps.' It reveals a non-linear relatio...