There are many different types of arches found in architecture, but what distinguishes the Roman arch from all the rest is that the blocks are designed to uniformly distribute the weight downward and outward throughout all the blocks that make up the arch. In other words, like a sphere, there is no point along the arch that is weaker than another. This actually makes it one of the strongest structural design concepts known to man. This kit allows a teacher to build their own Roman arch for teaching static equilibrium and practical math applications. Highly recommended for the physics or math classroom setting!
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
Large nitrile exam gloves designed and manufactured for superior protection against viral, bacterial, and certain chemical hazards.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Durable, anti-fog safety glasses that fit comfortably on any head size.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
Make the coolest 3D pin art on your desk with this amazing desk toy.
Build a magnetic levitating train with this science fair project kit!
An ancient toy featuring optical illusion and hands-on fun that never grows old!
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