Wave Workshop vs KORAKU

Have you ever wondered how a camera lens, a radar or a radio telescope work? This app will show you! Explore the wave nature of light in this real-time electromagnetics simulation. Wave Workshop is a real-time simulation of the propagation of electromagnetic waves. It features experiments with refraction, diffraction, antennas, and radars. It comes with the most famous experiments, such as single-slit and double-slit diffraction, as well as common refraction mechanisms. It also describes more advanced designs, such as crystal diffraction, Fresnel zones, and photonic crystals. It finally explores how some real devices work: a horn antenna, a corner reflector, a microwave door or a parabolic antenna. In each experiment, you can adjust a parameter and see its effect in real-time, such as the slit interval in the famous single-slit diffraction experiment. Each experiment comes with a detailed description and illustrative pictures. The full version features 23 experiments and a sandbox mode that lets you design your own experiments. This app is great for curious people who want to know more about the wave nature of light!

KORAKU is an interactive educational app for exploring optical phenomena through simulation. The fourth in the series following SUUGAKU (Math), BUTURAKU (Physics), and HARAKU (Waves). This time the theme is "Light." From geometrical optics to quantum-scale phenomena, experience ten simulations of how light behaves. [10 Simulations] - Lens (Thin Lens) Observe ray paths and image formation through convex and concave lenses in real time. Adjust focal length, object distance, and object height to experience the thin lens equation (1/f = 1/a + 1/b). - Spherical Mirror Toggle between concave and convex mirrors to visualize image formation. Move the object and change the radius of curvature to see real vs. virtual and upright vs. inverted images. - Prism Dispersion Simulate white light passing through a prism and separating into a rainbow spectrum, based on Snell's law and the Cauchy dispersion formula. - Rainbow Trace light entering a raindrop, refracting, reflecting internally, and exiting. Wavelength-dependent deviation reproduces the primary and secondary rainbows around the antisolar point. - Diffraction Grating Visualize multi-slit interference patterns. Change slit spacing and wavelength to understand the diffraction condition d sin(θ) = mλ. - Optical Fiber Simulate light propagation by total internal reflection. Adjust the launch angle and refractive indices to learn the relationship between critical angle and numerical aperture (NA). - Polarization Change the angles of the polarizer and analyzer to observe transmitted light intensity following Malus's law (I = I₀cos²θ). - Thin Film Interference Reproduce the rainbow colors of soap bubbles and oil films. Adjust film thickness, refractive index, and incident angle to observe interference based on optical path difference. - Color Mixing Compare additive color mixing (RGB light) and subtractive color mixing (CMY pigments). Three channel sliders show the resulting RGB values in real time. - Photoelectric Effect Animate electrons being ejected from a metal by photons. Three sliders for frequency, intensity, and work function let you feel the relationships E = hf, Kₘₐₓ = hf − W, and threshold f₀ = W/h. [Features] - Adjust parameters in real time across all simulations - Physics formulas and values displayed in real time - Dark mode / Light mode support - Japanese / English support - iPhone / iPad support [Pricing & In-App Purchases] - The app itself is completely free - No in-app purchases of any kind - No subscriptions - No paid additional content - A small banner ad (Google AdMob) is shown at the bottom of the screen - Ad personalization may use the iOS App Tracking Transparency permission (optional) [Recommended For] - Students studying optics in physics class - Anyone who wants to intuitively understand the properties of light - Teachers looking for teaching materials - Anyone interested in optics