BUTURAKU vs 元素カード119

BUTURAKU is a physics simulation app that lets you explore physical phenomena through real-time animations. Understand physics laws intuitively with beautiful visuals. Freely adjust parameters with sliders and observe how physical phenomena change in real time. 14 Simulations: > Translational motion - Free Fall: Observe the effects of gravity and air resistance. Tap to add balls, swipe to throw them. - Projectile: Adjust launch angle, initial speed, and air resistance to observe parabolic motion. - Inclined Plane: Motion on a surface with friction. Experience sliding conditions by changing angle and friction coefficient. - Brachistochrone: Race three balls down line, arc, and cycloid tracks under gravity. Bernoulli's classic 1696 problem - the cycloid wins. - Rolling Race: A box, a sphere, a cylinder and a ring race down the same slope. Their moment of inertia decides the order - mass and size do not. See how kinetic energy splits between translation and rotation. - Energy Conservation: A ball rolls along a roller-coaster track while kinetic and potential energy swap places. Turn on friction to see mechanical energy dissipate into heat. - Collision: 2D collisions based on conservation of momentum and kinetic energy. Momentum vector display available. > Oscillation and periodic motion - Pendulum: Nonlinear pendulum with high-precision RK4 integration. Drag to set the angle. - Double Pendulum: Coupled pendulums producing chaotic motion. Lagrangian mechanics + RK4. - Coupled Pendulum: Two pendulums joined by a spring exchange energy periodically - the classic beat phenomenon. - Spring: Simple harmonic motion with Hooke's law. Adjust spring constant, damping, and mass. - Circular Motion: Uniform circular motion with centripetal force visualization (F = mω²r). Adjust radius, angular velocity, and mass. - Planetary Orbit: A planet circles a star under universal gravitation. Change the launch speed for circular, elliptical or escape orbits. Color-coded sectors show Kepler's second law - equal areas in equal times. Tap to place the planet anywhere. > Waves - Wave: Tap to place wave sources and observe interference patterns. 2D wave equation solved numerically with finite differences. Features: - Real-time physics simulation - Intuitive touch controls - Freely adjustable parameters via sliders - Physics explanations for each simulation - Dark / Light theme support - Available in 74 languages

「元素カード119」は、元素周期表の全119元素をカード形式で学べる学習アプリです。 【元素カード】 各元素をカードで表示。元素記号、原子番号、原子量、電子配置などの基本情報を一覧できます。カードをめくるように楽しく学習できます。 【周期表ビュー】 インタラクティブな周期表から各元素の詳細情報にアクセス。元素の位置関係や族・周期の特徴を視覚的に理解できます。 【グループ別学習】 アルカリ金属、ハロゲン、希ガスなど、元素グループごとにまとめて学習。共通の特性を効率的に把握できます。 【暗記テスト】 元素記号や原子番号の暗記テストで理解度をチェック。繰り返し学習で確実に覚えられます。 中学・高校の理科学習から、大学受験の化学対策、化学に興味をお持ちの方まで、幅広くお使いいただけます。