Science Notes (26) 썸네일형 리스트형 On small movements of the eye(미세한 눈의 움직임) On the sides of many aspalt roads, there is a row of bricks just before buildings. Since these are bricks, there are slits where one brick ends and another starts. As I rotate my head and try to make my eyes follow the movement, it never 100% follows the skull. Instead, my gaze is focused at some point - usually the slits - and as if my eyes where locked in that direction, even though I try to m.. Skyrmions - magnetic flowers blooming on spiral magnets As I was surfing the internet, I found an interesting image[image 4] - a hedgehog configuration of a skyrmion. I had been wondering about whether a one pole magnet can exist, warping a magnet's shape. The image seemed as if magnetic force pointed outward from the sphere. Skyrmions The concept of a skyrmion was proposed by Tony Skyrme as a model of the nucleon. Skyrmions are also found in spiral .. Starbursts(eye) Seeing brignt lights, for example a car headlight, in the dark sometimes makes me see strays of light spreading outwards from the light source. It looks similar with the image below, but much less. In my case, the 'rays' have changes in their direction, are much less brighter, and often disappear when observed from a different angle. I have decided to make several theories on why this phenomenon.. Li-Fi - Wireless communication using light The term Li-Fi(Light Fidelitly) was first introuduced by Harald Hass in 2011. It is a way of wireless communication that uses light pulses as a medium for transmitting data. Transition speed is much faster than that of regular Wi-Fi, and can theoretically reach up to 100Gb/s. Solar Panels Solar panels are essential to Li-Fi technology because it converts light into electricity. When light enters.. Alcubierre Warp Drive(워프 드라이브) Alcubeirre Warp Drive The Alcubierre warp drive is a dirve that works by space distortion, as shown in the image below. According to Alcubeirre's metric, by expanding space behind a spacecraft and compressing space in front of it a spacecraft is able to move forward in speeds faster than c. This is similar to surfing on a wave - only that in this case, its a wave caused by distortion of space. T.. Ferromagnetism and Magnets(자석의 원리) Ferromagnetism Ferromagnetic objects are objects that consist of magnetic domains each with magnetic fields, arranged in opposite directions in nature, but alligned when an external magnetic field is applied. All ferromagnetic materials loose their ferromagnetivity when heated over the Curie temperature. Each ferromagnets have different Curie temperatures. Condition of Ferrromagnets All ferromag.. Motor Proteins(모터 단백질) ATP and ATP hydrolysis To understand how motor proteins 'walk' around, one has to know what ATP and ATP hydorlysis is. ATP is a battery-like molecule, standard to every living organism. the phosphoanhydirde bonds between every phosphorus and an oxygen atom to its right has a high potential energy, or 'stored energy'. This energy is used to power countless actions in an organism. Hydrolysis is ho.. Helmholtz Resonator - how blowing bottles creates sound(페트병 불기의 원리) When you blow the top of a bottle, it usually makes a wind instrument-like sound. The pitch seems to be higher when there's less water in the bottle. How is this sound made? The answer is: helmholtz resonance. When wind is blown to the top of the bottle's neck, it can be thought that air in the part of the bottle's neck resonates up and down. Since this is the only movement of air in the bottle(.. 이전 1 2 3 4 다음
