pasco.com的 10 大竞争对手

vernier.com

Connect with Us DON’T MISS AN ISSUE Sign up for our newsletter Stay in the loop! Beyond Measure delivers monthly updates on the latest news,...

flinnsci.com

752 1-800-452-1261 FLINN METHOD #27c Licensed Hazardous Waste Disposal Many hazardous laboratory wastes require licensed hazardous waste disposal. It is important to choose a

phet.colorado.edu

Founded in 2002 by Nobel Laureate Carl Wieman, the PhET Interactive Simulations project at the University of Colorado Boulder creates free interactive math and science simulations. PhET sims are based on extensive education research and engage students through an intuitive, game-like environment where students learn through exploration and discovery.

khanacademy.org

Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

physicsclassroom.com

The Physics Classroom serves students, teachers and classrooms by providing classroom-ready resources that utilize an easy-to-understand language that makes learning interactive and multi-dimensional. Written by teachers for teachers and students, The Physics Classroom provides a wealth of resources that meets the varied needs of both students and teachers.

arborsci.com

Dazzle your students with light and optics demonstrations like the Color Mixing Projector and laser viewing tank. Investigate light and refraction using our Laser Ray Box & Lens Set, and let students explore optics hands-on with the Introductory Optical System. We have everything you need to help lay the groundwork

snatoms.com

The idea with Snatoms is simple - to make the best hands-on molecular modeling kit. Snatoms are an improvement over traditional ball and stick models for three reasons: 1. They make forming and breaking apart molecules a snap 2. The models are a better representation of what molecules actually look like, and 3. You can feel the attraction between atoms Purchase from Amazon  Not sure which Snatoms kit is right for you? Watch the video below to learn more about Snatoms X and MicroSnatoms Please be aware that your item may be held at customs for inspection, delaying the delivery time, and you may be charged a customs fee or import tax or similar. Unfortunately, there is nothing I can do about customs clearance - customs laws make the importer (the buyer - you!) responsible for these fees.

eiscolabs.com

This sensor can be used to study various kinds of motion. With four modes of operation, time, velocity or acceleration can be measured with one or two photo gates and associated timing cards, as well as showing pictorially the status (digital 1 or 0) of the voltage output of the photo gate as timing cards pass through it. The modes of operation are selected by clicking on the relevant picture. The measured values can be displayed digitally or graphically. The sensor has five modes of operation: 1. Time and Velocity mode 2. Acceleration with single photo-gate 3. Acceleration with two photo-gates 4. Velocity and Momentum with two photo-gates 5. Status graph mode *Requires connection hardware, sold separately. Operation Modes: Range | ADC Resolution | Accuracy | Resolution | Max Sample Rate (S/sec): Single timing card with one photo gate, 16 bit digital, 100 μs, 100 μs, 10,000 Double timing card with one photo gate, 16 bit digital, 100 μs, 100 μs, 10,000 Single timing card with two photo gates, 16 bit digital, 100 μs, 100 μs, 10,000 Digital status one photo gate, 16 bit digital, 100 μs, 100 μs, 10,000 Video:

phys.libretexts.org

The LibreTexts libraries collectively are a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education.

chem.libretexts.org

The LibreTexts libraries collectively are a multi-institutional collaborative venture to develop the next generation of open-access texts to improve postsecondary education.