El propósito del libro es presentar a los lectores, de manera sencilla, la naturaleza del sonido y el papel que…
Un electrodo sensible mide valores de pH de 3.5 a 8, humedad del suelo de 0 a 100%. No requiere…
The OD-65, MagniFly™ is a lighted, fully-adjustable, flexible arm hands free magnifier that attaches to your table-top or can be…
The OD-95, MiniBrite™ pocket magnifier is a compact 5x power aspheric slide-out magnifier with a protective plastic sleeve. The OD-95…
El gel contiene los nutrientes necesarios para tus hormigas Aprende sobre su organización social y comunicación Observa como trabajan estos increíbles arquitectos …
Improve your detailed viewing with this compact easy to use round body eye loupe optical tool that has powerful 30x…
Useful accessory allows you to attach a Nikon 35mm DSLR or SLR camera to a telescope, camera adapter, SteadyStar Adaptive…
The right eyepiece can make or break any telescope. After all, why squint through a tiny pinhole when you can…
The right eyepiece can make or break any telescope. After all, why squint through a tiny pinhole when you can…
Planetario Digital Digitarium® Theta Descripción del Producto Nuevo! El modelo Digitarium® Theta es un sistema de planetario digital diseñado para usar en planetarios…
Put the power of a laboratory right in your hands New “Professional Grade” Meter Measure nutrient solutions, soils, greenhouse soilless media, water…
Tube Balance Weight Systems permit the balancing of heavy or long-lever-arm accessories attached to the eyepiece-end of the telescope. Each…
A must-have for safely observing the sun and sunspots without damaging your eyes4.57" Inside diameter optical glass filter fits snugly…
Recycle a soda can and turn it into a cool robotic bug. Switch it on and watch it vibrate causing…
Digitalis Domes are inflatable domes designed to be fast to set up and take down, and easily portable for circumstances…
LLAME PARA MAS DETALLES Y PRECIOS El modelo Digitarium® Lambda es un sistema de planetario diseñado para un planetario fijo. El…
Kit de accesorios para tomar muestras del suelo y medir niveles de nutrientes. (kit para 30 muestras) Kit de suelo para…
This 9mm eyepiece offers a wide field of view and superior optical performance at a bargain price Great eye relief so…
Highly desirable in sensitive imaging applications, Meade isolation pads reduce typical telescope-tripod vibration damping times to less than one second.…
Replacement anemometer, with black mounting base, for wireless and cabled Vantage Pro2 and Vantage Pro weather stations.…