In this blog post, we’ll explain how radar uses electromagnetic waves to capture enemy movement and pinpoint objects.   This is Country X’s operations center, deep underground in a bunker. In the center of the room is a large, square screen, lit up with blinking green dots. It’s friendly fire. Everyone is standing tensely in front of the screen, and suddenly a red dot...

Nanotechnology is one of the three T’s, with applications in new materials, medicine, electronics, and more. However, there are also risks to human health and the environment. As nanotechnology advances, it requires regulation and research.   Recently, the so-called 3Ts (NT: nanotechnology, BT: biotechnology, IT: information technology) have been receiving a lot of attention, and among...

In this blog post, we’ll take a look at whether free will and the self actually exist, and why we’ve come to believe they do.   We’re very familiar with the concept of free will, and we take it for granted that it exists. Generally speaking, people assume that the decisions they make are the result of conscious thought by an entity called “I.” Some believe this entity is a...

In this blog post, we’ll take a closer look at how wind is generated in a bladeless fan and the application of fluid dynamics principles behind it.   Mechanical Engineering and Fanless Fans The first appliance that comes to mind during the summer months is the electric fan. Not only are they cheaper than air conditioners, but they also save money on electricity, so you can leave them...

In this blog post, we explore the possibilities and limitations of whether religion can still speak truth in an age dominated by science.   Science and religion. They don’t seem to go together, yet they are constantly discussed together. While the ways in which science seeks to understand the world and religion seeks truth are seemingly very different, both fields ultimately have a...

In this blog post, we’ll explore the possibility of humanity one day traveling to the moon and floating among the stars, and the technology at the center of it all: rocket science.   Far, far out there! The human imagination about space dates back to ancient times. Thousands of years ago, people looked up at the night sky and saw the stars and planets in the distance as the realm of...

This blog post explores in depth the ethical issues that arise from the scientific and technological advances in optical camouflage and its potential military applications.   Introduction Optical camouflage has long been a concept that exists only in the human imagination. Science fiction themes such as “invisibility” have been explored in various cultures, from ancient mythology to modern...

In this blog post, we explore whether altruistic behavior in living things can be fully explained by the kin selection hypothesis.   All living things have a reproductive instinct that drives them to leave offspring. This instinct has been strengthened by natural selection as organisms have evolved over time. Organisms fulfill this instinct in a variety of ways. Competitive courtship...

In this blog post, we’ll take a look at whether learning with digital devices can really help improve focus and memory.   In the past, teachers would explain things on the board and students would take notes in their textbooks or notebooks. However, in recent years, most classes have moved away from this method of teaching and are now using beam projectors to present PPTs on their...

A look at the potential of shale gas development, its environmental risks, and the choices we face in the energy crisis.   With the Russia-Ukraine war dragging on for so long, we’ve all heard about the gas supply issues between Russia, Europe, and the United States. This issue is not just a geopolitical conflict, but a more complex shift in energy markets. For example, Russia’s...