Chemancy vs NETURAKU

Deep in the rock, under fog and runes, lies the order of the elements. It is waiting for someone to wake it. Chemancy turns chemistry into an adventure. Four games, one rock, not a single worksheet. You set elements until the periodic table grows out of the cave wall. You push atoms together until they become water, ammonia, sulfuric acid. You bring a balance to rest with an equation lying on it. And in the lab you mix whatever you like, just to see what happens. You learned it anyway. That is the trick. WAKE THE PERIODIC TABLE Every element to its place, one after another. What you set is struck into the rock and stays there. Play a perfect round and the rock breaks open — behind it lies a cave only the best will ever see. BUILD MOLECULES Push the atoms until they find each other. 168 compounds are waiting to be discovered, and each one tells you what it is, where it occurs and why the world needs it. MASTER THE REACTIONS An equation rests on a glowing balance beam, and the beam tips towards the heavier side. Find the right numbers and it hangs level — then it burns through. 112 equations, from the hydrogen pop test to titration. ENTER THE LAB No task, no rules, no end. Pull atoms out of the periodic table into the pit, add a spark, some heat or light, and watch what forms. Then let water in — from there it is a different chemistry. Acids break into their ions, alkali metals react with it, salts dissolve. Boil the water away and they crystallise again. 178 reactions are waiting to be found, and not one of them is set as a task anywhere. When you get stuck, the shelf shows the way: for every substance it tells you how it really forms in your lab — not the textbook synthesis, but the one that works here. PROOF OF YOUR MASTERY Place all 118 elements correctly and the system wakes one last time: lightning strikes, light runs along every path until the whole rock glows. Then you receive a certificate — an image to share, carrying a code that proves it is real. Anyone who shows it has earned it. And the colour stays: teal, violet or gold, depending on the difficulty, kept in the fog around the menu stone. KNOWLEDGE THAT HOLDS Behind the game sits a learning area that fears no exam. For all 118 elements the values that actually get asked, plus twelve colour views of the whole table. And profiles for all 168 compounds, open from the start. Exam, degree or pure curiosity — it sticks here, because it was fun. FAIR AND TIDY • Completely offline • No data collection, no tracking, no accounts • Free, with no ads • 14 languages, on iPhone, iPad and Mac The rock is waiting. Start with one element. Sound credits: whoosh_into_hit_flanged_001.wav by alanmcki -- https://freesound.org/s/461024/ -- License: Attribution 4.0 ship explosion 1 with build up by madamdata -- https://freesound.org/s/479363/ -- License: Attribution 4.0 Sci-Fi Whoosh.wav by sonicboom_sfx -- https://freesound.org/s/223783/ -- License: Attribution 3.0 DSGNErie_A Far Dark Otherworldly Transitions 1 x4_EM by newlocknew -- https://freesound.org/s/825678/ -- License: Attribution NonCommercial 4.0 DSGNErie_A Far Dark Otherworldly Transitions 2 x4_EM by newlocknew -- https://freesound.org/s/826582/ -- License: Attribution NonCommercial 4.0 Water sizzling on hot stove by VlatkoBlazek -- https://freesound.org/s/264811/ -- License: Attribution 4.0 All six edited (trimmed, adjusted in volume, mixed). All other sounds are CC0.

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