Ergosfera Teaching Tools

Personal dashboard for office and teaching work. Includes dual calendars with Colombian holidays, countdown timers for specific events, a task list, and notepads. Supports dark/light mode and JSON export.

Split-screen board: a grid notebook for freehand writing and drawing on the left (70%), and a scientific calculator on the right (30%). Calculator supports trig (sin, cos, tan and inverses), logarithms, powers, square roots, scientific notation, radians/degrees toggle, ANS memory, and full keyboard input with algebraic notation.

Timer designed for classroom activities. Manage different activity segments — presentations, group work, breaks, exams — each with their own countdown. Keep your class on schedule with clear visual feedback for students and teacher.

Stopwatch designed for physics lab experiments studying motion. Emits an audible beep at customizable intervals. Add experiment metadata when finished and export all data as CSV for analysis.

The classic astronomical tool used to detect changes between two images by rapidly alternating between them. Align images, adjust blink speed, and spot moving objects, new stars, or differences — just like professional astronomers do.

Visualize and understand linear regression intuitively. Shows why the best-fit line minimizes residuals — the sum of vertical distances above equals the sum below. Add points manually or via a data table.

Add up to 7 force vectors, each with its own color. Drag tips to change direction, set magnitudes in the table. Components, projection lines, and angle arcs are shown in each vector's color. A live Fnet mini-panel displays the resultant at all times. Reveal the full Fnet data with one click.

Draw a vector interactively on a canvas and instantly see its x and y components. Set a custom magnitude, display dashed projections, component arrows, or the right-triangle form. Great for introducing vector decomposition in class.

Import position vs. time data (CSV or manual entry) and explore how the instantaneous velocity is approximated by finite differences. Three linked tables show raw (t, x) data, intervals (Δt, Δx), and velocity at each midpoint. Two live scatter plots display x(t) and v(t), with an optional best-fit line for the velocity graph.

Import a v vs. t dataset from CSV and instantly see the area under the curve decomposed into coloured rectangles and triangles — one pair per segment. Each shape is shaded, labelled with its formula and area, and summed into a full breakdown table. Reports both total distance (path length) and displacement (signed net area).

Mark checkpoints at known positions along a track — each press of Space records the time. Instantly computes average velocity v̄ and acceleration a for every segment using the midpoint method, and plots x(t) and v(t) live. No spreadsheet needed: start the experiment, press Space, read the kinematics.

Simulate a pair of photogates with just two keys. Press Q as an object enters and exits Gate A, press P for Gate B. The tool computes instantaneous velocities v₁ and v₂ from flag timing, then derives acceleration via the midpoint method — or from kinematics if you enter the distance between gates. Saves a trials table with mean ± σ.

Explore the signs of velocity and acceleration through a scrolling-road simulation viewed from the car's frame. Set initial velocity and acceleration, watch the background move, and read live vector arrows. Includes a unit toggle (km/h ↔ m/s), keyboard controls, elapsed timer, and an auto-pause when v = 0.

Explore the signs of velocity and acceleration in the vertical direction through a scrolling-shaft simulation viewed from inside the elevator. Positive is upward, negative is downward. Set initial velocity and acceleration, watch floor numbers scroll, and read live vertical arrows. Includes unit toggle, keyboard controls, and auto-pause when v = 0.

Simulate a ball rolling down an inclined plane under Earth's gravity. A stopwatch marks positions every second, building a position vs. time dataset in real time. Designed to be used alongside the Interval Stopwatch for hands-on kinematics lab sessions. Adjust the acceleration with a slider and observe how the position and graph change instantly.

Classical Doppler effect visualized with animated wave fronts. A moving source emits concentric waves: they bunch up ahead (shorter wavelength, higher frequency) and stretch out behind (longer wavelength, lower frequency). Adjust source speed and observe how the wavefront pattern changes in real time.

1D special-relativistic Doppler simulator. Three objects — Aurora, Coriolis, and Borealis — move independently at fractions of c. Coriolis emits light; Aurora and Borealis observe it. Each observer panel shows received frequency, wavelength, shifts Δf and Δλ, and the redshift parameter z, updated in real time as objects move and pass each other.