Simple Pattern Sonometer, 98 x 9cm Safety Supplies_Eye Protection Reveals Earth's internal structure through

Reveals Earth's internal structure through a seven-piece cross-sectional globe whose crust

Bending and curving along its 220mm length

Matte-black metal body 20mm in internal diameter and 22mm deep on a bench rod

this sonometer carries brass and steel wires across a 114cm wooden box with two millimetre rules

supporting both qualitative and quantitative force-vs-distance student investigations

Simple Pattern Sonometer, 98 x 9cm Safety Supplies_Eye Protection Reveals Earth's internal structure throughWood baseboard sonometer 98 x 9cm on four feet, paired with two 50N spring balances and two wrest pins so students can verify the laws governing frequency, tension, and string length.