Physics, a cornerstone of engineering and science degrees, often becomes a daunting hurdle for many first-year students. Abstract concepts like Ohm’s Law or Lorentz Force, essential for any student, are frequently perceived as distant and disconnected from real-world applications. This classic challenge (physics courses being among the hardest) plays a significant role in academic failure […]
Is the intelligence test an “objective”, scientific device or just a way to “execute” social discrimination? This article (based on ) presents the latest steps to trace the history of one of the most problematic chapters in psychology’s history: the application of intelligence testing. By informing about the history of the IQ debate I want […]
Jon Agar is a Professor of Science and Technology Studies at University College London. He writes on contemporary technologies (such as mobile phones, ID cards) and the history of modern science and technology. He is the author of Science in the Twentieth Century and Beyond published by Polity Press. He is also editor of the […]
What is a radiation dosimeter? Why do we need one? To give you an interesting and short response I will remind you what the Japanese government officials offered to Fukushima evacuees after the 2011 nuclear disaster. Having failed to reach their original radiation decontamination target, the government proposed that evacuees could return to their homes […]
Voice and exit are often alternative ways of exerting influence, but with regard to voting the exit option spells no influence; only voice can have an effect[…] A. Lijphart In polls many citizens express some dissatisfaction with politicians. Usual ways to voice this dissatisfaction in elections are absenteeism, spoiled or blank vote, or voting for […]
Decision making in areas such as production planning, distribution and grid management, logistics or financial portfolio management is usually based on mathematical models, mathematical optimization themselves. Let us assume that we have to take a decision of how many units to produce of two products A and B. The production system is common and has […]
Scientific experiments using animals frequently involve the marking of animals that artificially changes their phenotype. For instance, penguins with flipper bands have been used to study climate change. However, as Saraux et al. show, this banding reduces penguins’ survival rate. Consequently the study may mix up the effects of banding with other changes in penguin […]
The wave nature of light expresses itself in the propagation all over space, showing an intrinsic limitation to be localized beyond the so-called diffraction limit which is of the order of half the wavelength of the photons propagating. However when interacting with matter, light often gets reflected, diffracted, scattered or absorbed depending on the interactions […]