NETURAKU vs WaveMachine at Home

NETURAKU is an interactive educational simulation app for experiencing thermodynamics phenomena hands-on. The 5th app in the RAKU series following SUUGAKU (math), BUTURAKU (physics), DENRAKU (electricity), and HARAKU (waves). This time, the theme is heat. Learn and enjoy the wonders of heat and the depth of physical laws through 10 simulations. [10 Simulations] 1. Particle Motion (Ideal Gas) Observe particle motion in real time based on temperature. Change volume and temperature to measure pressure from wall collisions and experience the ideal gas law (PV = nRT). 2. Heat Conduction Simulate heat diffusion using a 2D finite difference method. Adjust heat source temperatures and thermal conductivity to observe temperature distribution changes based on Fourier's law in real time. 3. Phase Transition Matter changes state between solid, liquid, and gas as temperature varies. Intuitively experience the differences in particle behavior from lattice vibrations to free motion. Visually understand the concepts of melting and boiling points. 4. Carnot Cycle Follow the 4 processes - isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression - on a PV diagram. Visualize the efficiency of an ideal heat engine (eta = 1 - T_L/T_H). 5. Entropy Simulate the mixing process of two types of gas separated by a partition. When the partition is removed, observe entropy increasing in real time on a graph. 6. Thermal Radiation (Blackbody Radiation) Visualize the blackbody radiation spectrum (Planck distribution) in real time based on temperature. As temperature changes, the peak wavelength shifts (Wien's displacement law) and radiant energy is proportional to the fourth power of temperature (Stefan-Boltzmann law). 7. Speed Distribution (Maxwell-Boltzmann) View the speed distribution of gas particles as a histogram alongside the theoretical curve. As temperature rises, watch the distribution broaden and its peak shift to the right. Build intuition for the most probable, mean, and root-mean-square speeds. 8. Brownian Motion Visualize a large particle (pollen grain) undergoing irregular motion as it is buffeted by countless invisible smaller molecules. The path is drawn in real time, revealing the random-walk trajectory and how temperature and molecule count affect the motion. 9. Cooling Law (Newton's Law of Cooling) Simulate how a hot object cools at a rate proportional to its temperature difference with the surroundings. Adjust the cooling coefficient, initial temperature, and ambient temperature to watch the exponential decay curve on the temperature-time graph approach equilibrium. 10. Diffusion (Fick's Law) Simulate how a concentration imbalance, like a drop of ink, spreads from high to low until it becomes uniform. Tap to add ink and watch the center cross-section profile flatten (peak lowering and widening toward a uniform state). [Features] - Adjust parameters in real time across all simulations - Real-time display of physics formulas and numerical values - Dark mode / Light mode support - Clean home screen organized by category - Intuitive and beautiful UI - Only a banner ad at the bottom of the home screen - No in-app purchases or subscriptions [Recommended For] - Students studying thermodynamics or statistical mechanics in physics class - Anyone who wants to intuitively understand the properties of heat - Teachers looking for educational tools - Everyone interested in thermodynamics and statistical physics

This app is a waveform simulation tool that allows you to intuitively control and observe physical phenomena such as wave propagation, reflection, and superposition (interference) right on your smartphone. You can experience the wave behaviors found in physics textbooks by actually moving them with your own fingertips. 【Key Features】 - Intuitive Wave Generation Simply swipe up and down on the edge of the screen to create pulse waves of any shape and size. - Versatile Boundary Conditions You can set the left and right ends to "Fixed End" (wave reflects inverted), "Free End" (wave reflects upright), or "No Reflection" (wave is absorbed). - Visualization of Incident, Reflected, and Superposed Waves The app color-codes the traveling "Incident Wave," the bouncing "Reflected Wave," and the combined "Superposed Wave." You can see at a glance the exact moment waves interfere to become larger (constructive) or smaller (destructive). - Time Machine Function (Seek Bar & Frame-by-Frame) Pause the wave motion and use the seek bar to freely travel back to past waveforms. Frame-by-frame advance and rewind buttons let you carefully observe and analyze the crucial moments when waves overlap. - Simple Harmonic Motion (SHM) Mode Automatically generate beautiful sine waves with a single button. Ideal for observing continuous waves traveling at a constant period or standing waves created by reflection. - Free Customization Adjust the simulation speed, change the colors of each wave, and use the snapshot feature (which leaves a faint trace of the waveform in the background). 【Recommended For】 - Students studying wave mechanics who want to visually understand wave reflection and interference. - Educators who want to clearly explain wave motion in their classes. - Anyone who wants to relax by watching soothing, undulating waves.