An interactive atmospheric optics simulator that visualizes how mirages form through the refraction of light in air layers with different temperatures and densities.

Explore inferior mirages, curved light paths, heat gradients, road mirages, and superior mirages through real-time animated visualizations.

Adjust surface heat, temperature gradient, observer height, and air shimmer to see how atmospheric conditions change the apparent position and distortion of distant objects.

The simulator also compares normal vision, inferior mirages, and superior mirages, providing an intuitive way to understand why hot roads can appear wet and why distant objects sometimes seem displaced or floating.

An interactive educational simulator that visualizes how a robot vacuum understands, navigates, and cleans a home.

Explore the autonomous process of sensing, localization, mapping, path planning, obstacle avoidance, cleaning, and returning to the charging dock.

The simulator also introduces SLAM, LiDAR-style sensing, coverage planning, and the cleaning system through an interactive smart home environment.

This is an interactive laboratory designed to help users explore and understand charge-carrier flow inside semiconductors from multiple perspectives.

• Electron Flow — Visualizes the movement of electrons and holes, including thermal motion, drift, and scattering, in real time using Canvas.
• 4 Visualization Modes — Explore semiconductor behavior through Carrier Drift, Crystal Lattice, Thermal Motion, and Electric Field views.
• Material Models — Compare Intrinsic, N-type, and P-type semiconductors.
• Energy Bands — Visualize the concepts of the Valence Band, Band Gap, and Conduction Band.
• P–N Junction — Explore P-type and N-type regions, the depletion region, and the basic concept of electrical bias.
• MOSFET Channel — Follow the process Gate Voltage → Electric Field → Channel Formation → Carrier Drift → Drain Current.
• Concept Map — Understand the relationship Crystal Lattice → Energy Bands → Charge Carriers → Electric Field → Electrical Current.
• Interactive Parameters — Directly adjust Electric Field, Carrier Density, Temperature, Scattering, and Hole Fraction.
• Simulation Controls — Experiment with Inject Carriers, Pause, Reverse Field, and Reset.
• Real-Time Telemetry — Monitor Electrons, Holes, Drift Index, Scatter Events, and Current Trend as the simulation runs.
• Electron vs. Conventional Current — Visually observe the difference between the electron drift direction and the conventional current direction.
• Educational Conceptual Simulator — This is not a TCAD or SPICE tool for real semiconductor process or device design. It is designed as an educational conceptual simulator for understanding the fundamental principles of semiconductor charge transport.

Overview

An interactive, browser-based simulation of a traction elevator control system, showing how a Programmable Logic Controller processes inputs, executes ladder logic, drives outputs, and manages safety interlocks in a continuous scan cycle. The simulation runs a five-floor elevator with real physics — acceleration, deceleration, door timing, and counterweight movement — while exposing the underlying control logic in real time.

Content

Live Operation — The main view shows an animated elevator shaft with a moving car, counterweight, and spinning sheave. Hall call buttons on each floor and car operating panel buttons inside the cab register requests. The controller dispatches the car to the nearest pending call, smoothly accelerates and decelerates using configurable speed and acceleration parameters, levels at the target floor, releases the brake, and opens the doors automatically. A bottom console shows the PLC scan cycle animating through its four phases, live logic bar graphs for position, velocity, and door state, a timestamped event log, and the current state of the four main output commands — motor up, motor down, brake, and door open.

PLC I/O & Ladder — Shows the input and output racks with 24 VDC digital I/O addresses and their current on/off states, updated live from the simulation. A simplified ladder logic diagram displays five rungs covering the up motion enable, down motion enable, brake application, door open, and dispatcher dispatch coils — each with their contact conditions lighting up as the simulation runs.

PLC Scan Cycle — Explains and animates the four-phase PLC scan: read inputs, execute program, write outputs, housekeeping. A process image table lists all key addresses and their current values sampled live from the simulation.

Safety Chain — Shows the series of interlocks that must all be healthy before motion is permitted — emergency stop closed, doors locked, limit switches normal, brake monitored, and drive healthy. Training fault injection buttons simulate a door interlock failure, a drive inverter fault, and a limit switch fault, showing how the controller removes motion commands and applies the brake in response. A clear button restores all devices.

Controls — Mode switch between AUTO and MANUAL, sliders for maximum speed (0.4–2.0 m/s), acceleration rate, and door dwell time, manual jog up/down buttons (MANUAL mode only), emergency stop toggle, and controller reset.

Graph plotter · Statistics · Matrix operations · Base converter · Physical constants · History — all in one browser tab.

An interactive railway engineering simulator that visualizes the key technologies that enable high-speed trains to operate safely and efficiently.

Explore high-speed running, aerodynamics, distributed traction, braking, curve dynamics, and pantograph power collection through animated engineering visualizations.

Adjust train speed, curve radius, and braking demand to observe how aerodynamic drag, traction power, lateral forces, and vehicle stability change under different operating conditions.

The lab provides an intuitive introduction to high-speed rail engineering, vehicle dynamics, aerodynamic performance, electrical traction, and railway infrastructure.

An interactive propulsion engineering visualizer that demonstrates how a rocket engine converts propellant energy into thrust.

Explore the complete flow from propellant injection and combustion to nozzle expansion and high-velocity exhaust, with animated views of the engine’s internal processes.

Adjust throttle, chamber pressure, and altitude to observe how mass flow, exhaust velocity, thrust, and plume expansion change under different conditions.

The visualizer provides an intuitive introduction to rocket propulsion, combustion, nozzle dynamics, exhaust momentum, and thrust generation through simplified educational simulations.

AWS에서 사용하는 주요 클라우드 서비스의 사용량을 입력하여 월간·연간 예상 비용을 시뮬레이션하는 교육용/견적용 웹 도구입니다. AWS 클라우드를 중심으로 각 서비스가 연결되는 구조를 시각적으로 표현하고, 서비스별 비용 비중도 함께 보여줍니다.

주요 기능은 다음과 같습니다.

• EC2 Compute대표 EC2 인스턴스 종류 선택
• t3.nano ~ t3.2xlarge 지원
• 인스턴스 종류에 따라 vCPU, Memory, 시간당 가격 자동 변경
• 인스턴스 수와 월 사용 시간에 따른 Compute 비용 계산
• S3 Storage저장 용량(GB) 입력
• GB당 월 요금 설정
• 요청 등 기타 비용 추가
• 월간 스토리지 비용 자동 계산
• Data Transfer
• 인터넷 송신 데이터 용량 입력
• GB당 데이터 전송 요금 설정
• 기타 네트워크 비용 추가
• CloudFront / CDN
• 월간 CDN 데이터 전송량 입력
• GB당 전송 요금 설정
• 요청 등 기타 비용 추가

계산 결과에서는 월 예상 비용, 연간 예상 비용, 원화 환산 금액, 일 평균 비용을 보여주며, EC2·S3·Data Transfer·CloudFront가 전체 비용에서 각각 어느 정도를 차지하는지도 막대그래프로 시각화합니다.

또한 Small Web, API Server, Static + CDN과 같은 사용 시나리오 프리셋을 제공하여 AWS를 잘 모르는 사용자도 대표적인 서비스 구성을 바로 비교해 볼 수 있습니다.

문자만 입력하면

로고가 됩니다.

브랜드 이름을 입력하고 스타일·서체·간격·색상을 조절해 텍스트 로고를 만들어 보세요.

Future Me Test는 현재의 선택을 바탕으로 10년 후 내가 어떤 삶을 중요하게 생각하는지 탐색하는 자기 이해 콘텐츠입니다. 미래의 직업을 예측하는 테스트가 아니라, 여러 상황에서 반복적으로 선택하는 가치를 분석합니다.

18개의 질문에 답하면 다음 6가지 미래 가치를 분석합니다.

• 🏡 안정 — 안정적인 생활 기반, 예측 가능성, 지속 가능한 삶
• 🏆 성취 — 목표 달성, 전문성, 도전과 결과
• 🤝 관계 — 가족·친구·동료와의 연결과 깊은 관계
• 🕊️ 자유 — 시간과 삶의 방향을 스스로 선택하는 자율성
• 🌱 성장 — 새로운 지식과 능력을 배우며 발전하는 삶
• 🌍 경험 — 여행, 새로운 활동과 다양한 삶의 경험

결과에서는 가장 강하게 나타난 가치를 기준으로 ‘단단한 기반을 만드는 사람’, ‘목표를 현실로 만드는 사람’, ‘사람과 함께 성장하는 사람’, ‘나만의 방식으로 사는 사람’, ‘계속 진화하는 탐구자’, ‘세상을 넓게 경험하는 탐험가’ 등의 Future Me 유형을 보여줍니다.

또한 6개 가치 레이더 차트, 핵심 가치와 보조 가치, 가치별 상대적 점수, 그리고 이번 주 → 향후 3개월 → 1년 후로 이어지는 Future Roadmap을 제공하여 단순 테스트 결과에서 끝나지 않고 실제 자기성찰로 연결되도록 구성했습니다.

한 문장으로 요약하면:

“현재 내가 중요하게 생각하는 가치를 통해 미래에 어떤 삶을 원하는지 발견하는 인터랙티브 자기이해 테스트”

An interactive automotive engineering simulator that visualizes how an automatic transmission transfers engine power to the wheels and changes gears.

Explore the torque converter, planetary gearset, automatic shifting, gear ratios, and complete power flow through real-time animated visualizations.

Adjust throttle, vehicle speed, and load to observe how the selected gear, engine RPM, torque, and transmission behavior change during acceleration and cruising.

The simulator provides an intuitive introduction to automatic transmission mechanics, torque multiplication, gear shifting, and automotive powertrain engineering.

An interactive engineering simulator that visualizes how skyscrapers respond to earthquake ground motion.

Compare Standard Structures, Tuned Mass Dampers, and Base Isolation Systems to see how different engineering approaches can reduce building sway and vibration.

Adjust ground motion, building height, damping, and shaking frequency while exploring seismic waves, structural response, and resonance in real time.

The simulator provides an intuitive introduction to earthquake engineering, structural dynamics, vibration control, and seismic protection systems.

〈터미네이터〉의 Skynet을 소재로, AI가 인간의 통제를 벗어나는 극단적인 영화적 상황과 현실의 AI 위험을 비교하는 교육용 콘텐츠입니다.

핵심 내용은 AI 자체를 두려워하기보다는 AI에 과도한 권한을 부여하고 인간의 검증과 통제를 없애는 것이 위험할 수 있다는 메시지입니다. 영화 속 Skynet과 현실 AI는 다르다는 점도 명확히 구분합니다.

주요 위험 요소로는 AI 결과에 대한 과신, 통제 없는 자동화, 딥페이크와 정보 조작, 개인정보·기밀정보 노출, 편향된 의사결정, 피싱·사기·사이버 공격 등 악의적인 AI 활용을 다룹니다.

특히 사용자가 직접 AI Control Room을 조작하면서 인간 승인 제거 → 독립 모니터링 제거 → 위험 증가 → 인간 통제 복구 과정을 체험할 수 있도록 구성했습니다.

결론적으로 전달하는 메시지는 다음과 같습니다.

AI가 얼마나 똑똑해지는가보다, 인간이 AI의 권한과 통제권을 어떻게 설계하는지가 중요하다.

이를 위해 Human Oversight(인간 감독), Limited Authority(권한 제한), Independent Check(독립 검증), Fail-safe(안전장치), Accountability(책임 체계)의 5가지 안전 원칙을 제시하는 콘텐츠입니다.

An interactive science visualizer that explores how black holes move through space and interact with gravity.

Explore galactic travel, orbital motion, binary black holes, inspiral and merger, gravitational-wave recoil, gravitational lensing, and gravitational waves through real-time animated simulations.

Adjust motion speed, trajectory curvature, and trail length to observe how different motion patterns and gravitational interactions are visualized.

Designed as an educational astrophysics experience that helps users understand how black holes can travel, orbit, merge, distort light, and generate ripples in spacetime.

An interactive 3D educational visualizer that reveals how the components inside a smartphone work together.

Explore an exploded smartphone model featuring the display, touch layer, SoC, RAM, storage, modem, battery, camera, sensors, and wireless systems.

Adjust the exploded view, trace data and power flow, rotate the device, and explore dedicated sections covering computing, camera processing, wireless communication, sensors, and energy management.

An interactive 3D educational simulator that visualizes how the human immune system responds to a viral infection.

Explore the battle between viruses, innate immune cells, adaptive immune cells, and antibodies inside an interactive microscopic environment.

Adjust viral pressure, innate response, adaptive response, and immune memory to observe how the balance changes over time. The simulator also explains the process from Exposure → Infection → Innate Response → Adaptive Response → Resolution & Memory.

An interactive 3D educational visualizer that explains the core systems behind military uncrewed aircraft without modeling weapon or attack operations.

Explore how aerodynamics, flight control, onboard sensors, situational awareness, communications, ground control, and human supervision work together as one integrated system.

Adjust wind disturbance, sensor activity, and communication quality while exploring dedicated views for flight systems, sensing, communications, and safety. The simulator also highlights human authorization, operational boundaries, system monitoring, and safe failure handling.

An interactive 3D educational visualizer that explores how robots may transform or take over specific human tasks across different industries.

Explore Industry & Logistics, Service & Retail, Health & Care, and Field & Hazard while adjusting robot capability, environmental structure, human interaction, and safety requirements.

The simulator compares automation, human–robot collaboration, and human-centered work, showing how future jobs may evolve from Occupation → Tasks → Human / Robot / Shared → Redesigned Workflow.