Features Learn the basics of circuitry as you build your own boxing robots Have a fun bot-battle with family and friends Individual scoreboards allow players to track their points Boxing ring base doubles as a storage box for easy transport Description First you build, then you battle! Punch up the “fun” in science fundamentals with […]

Features 24 different slide images included! 2 rotating star pattern domes! Project images on any surface! 360° Rotation Description Bring outer space indoors, with this 2-in-1 Projector that can transform any room into a galaxy of orbiting stars and provide a gallery of inspiring celestial images to explore. On one end, the pivoting projector has […]

Features Waterproof up to 10m without case or 30m with case 6-axis gyro unit stabilizes the camera during fast-paced action True 4K video resolution up to 60 fps 16MP photo resolution Wide 170° field of view Multiple mounting accessories Ground stake allows for excellent set shots Separate remote-control device easily attaches to your wrist 2” […]

Description Dual plug (DB9 FTDI chipset and USB 2.0 Mini B) works with PMC-Eight OPENGoTo systems, allowing ASCOM communications between a computer and the PMC-Eight system. * The 10-foot-long cable provides ample length for ease of use. Each leg of the ES-ASCOM-Y cable is 9 feet long, allowing for an 18-foot-wide spread between devices. * […]

Features Variable polarizing filter Individually adjustable image brightness Made from highly parallel optical glass Black anodized aluminum housing 1.25″ filter thread on both sides Dust cover included Description Universally applicable variable polarizing filter with 1.25″ filter thread. This variable polarizing filter allows continuous adjustment of image brightness. This is very helpful to strong contrast differences […]

Features Dark-Sky filter Contrast increase in aurora & deep-sky photography Reduction of stray light from street lights, for example Wide-angle shots of the starry sky, time-lapse shots Blocks yellow light, not possible with image editing Black anodized aluminum housing 77mm filter thread for photo lenses Construction height only 4mm (Slim) Suitable for wide-angle lenses Made […]

Features 1.25 “linear polarization filter Socket with 1.25 “filter thread Also suitable for Lunt Herschel wedges Description Simple linear 1.25 “polarization filter. This simple polarization filter is suitable, for example, for use on the Lunt Solar Systems 1.25″ white light Herschel wedge (0558211). CA Residents: Prop 65 WARNING(S)

Description Whether you’re looking to delve into the details of our solar system or explore inspiring deep sky treasures, the versatile FirstLight series has an observing package that will fit your individual needs. Each of the combinations in this new line comes complete with all of the essentials: a telescope, a sturdy mount, an eyepiece […]

Features High quality Explore Scientific O-III filter Let only the oxygen emission lines “through” Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwidth: 6.5 nm Narrow-band design for difficult city conditions More contrast and details for all urban observers and astrophotographers An individual test report of this premium filter is […]

Features High quality Explore Scientific S-II filter Absorbs all other emission lines Absorbs almost all of the artificial light Passband bandwidth: 12 nm For observing faint planetary nebulae, emission nebulae and supernova remnants More contrast and details for all urban observers and astrophotographers An individual test report of this premium filter is included in the […]