Experiments
28 labs: 21 open now, the rest on their way.
28 shown
- Solar and lunar eclipsesDrag the Moon along its orbit, watch the shadow cross the Earth, then stand on Earth and see the eclipse.Open lab
- Moon phasesWatch why the Moon waxes and wanes as it orbits the Earth.Open lab
- Satellites 3DSpace stations and bright satellites on a 3D globe: live positions, tracks, sunlit or in shadow, and what you can see from your site.Open lab
- Solar systemFly through the planets and compare their orbits and sizes.Open lab
- Sky simulatorA planetarium for your site and any time: real stars, the Milky Way, constellations, planets, satellites and meteors in an all-sky map or a 3D dome.Open lab
- Simple pendulumChange length and gravity and measure the period.Open lab
- Projectile motionLaunch a projectile and trace its path for any angle and speed.Open lab
- WavesBuild travelling and standing waves and see interference.
- Animal cellExplore the organelles of a cell in 3D.Open lab
- DNAUnzip the double helix and see how bases pair.
- Acids and basesTitrate a solution and watch the pH change.
- MoleculesBuild molecules atom by atom and rotate them.
- Plate tectonicsMove plates and see earthquakes, volcanoes and mountains form.
- Water cycleFollow water through evaporation, clouds and rain.
- StratigraphyDig a site layer by layer and date what you find.
Astronomy tools 5
- Astro calendarTonight's sky, a monthly Moon and event calendar, upcoming eclipses, planets, meteor showers and asteroid close approaches.Open lab
- Meteor showersThe 13 major annual showers: forecast, viewing guide, 3D orbits and dark-sky sites.Open lab
- Conjunctions & transitsPlanet, Moon and star conjunctions, lunar occultations, satellite transits, Galilean moon phenomena and Mercury/Venus transits for your location.Open lab
- Light pollutionBortle class map with city light domes, VIIRS night lights and a dark-sky sites table.Open lab
- Plate solvingBlind star-pattern solver: upload an astrophoto and get its RA/Dec, field of view and the constellations and objects in it.Open lab
Antennas 8
- CantennaSize a can waveguide antenna: cutoff frequencies, guide wavelength and probe position.Open lab
- Ground planeSize a quarter-wave ground-plane vertical with drooping radials and see the whip, hub, mast and doughnut lobe in 3D.Open lab
- J-poleSize a J-pole antenna and see its long radiator, matching stub, U bend and coax feed taps in 3D.Open lab
- V-dipoleCut the two legs of a V-dipole for 137 MHz weather satellites and see the bent legs, feed point and sky-facing lobe in 3D.Open lab
- YagiSize a DL6WU Yagi-Uda beam antenna and see its elements, boom, feed point and forward lobe in 3D.Open lab
- Quadrifilar helix (QFH) antennaSize a quadrifilar helix antenna for satellite reception and see its two twisted loops in 3D.Open lab
- Parabolic dishSize a prime-focus or offset satellite dish and see its focus, gain and beam in 3D.Open lab
- Turnstile antennaDesign a crossed-dipole circularly polarised satellite antenna with a 90° phasing line.Open lab