"solar+filter"

Explore how solar power is converted into motion with a solar bug.

These cellulose filter papers are intermediate in speed and retention between grades 1 and 4.

Maximum efficiency monocrystalline solar cells.

Great Intro For Solar Energy!

High Quality Filter Paper.

This economical demonstration solar car can be powered by a solar cell or a rechargeable battery (AA size, not included).

Turn a Celestron PowerSeeker 70 AZ, PowerSeeker 70 EQ, or Travel Scope 70 mm telescope into a solar scope.

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Compact 7.2 V, 200 mA solar panel is ideal for DIY projects and small devices.

Qualitative Filter Paper is available in three standard grades.

Grade 93 qualitative filter paper.

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.

Quantitative filter papers are used for gravimetric analyses or filtrations where the precipitate is to be recovered.

Syringe filters are available with a choice of membrane type: Polyethersulfone (PES) for low protein binding and faster flow rates; surfactant-free cellulose acetate (SFCA), with or without prefilter, for lowest protein binding; Polytetrafluoroethylene (PTFE) for chemical resistance; regenerated cellulose (RC) – the best choice for DMSO compatibility; and nylon (NY) which is hydrophilic, surfactant-free and lowest extractable.

A good quality paper recommended for student use and all routine filtering operations. This is a strong filter paper with a medium flow rate and retention.

Provide students with a safe, hands-on way to observe solar eclipses and explore astronomy concepts in real time.

Working Solar Collector That Students Construct and Monitor.