Science center & children's museum exhibits · one-stop sourcing Emailsales@popscicat.com
WeChat popscicat / WhatsApp
PopSciCat Exhibit Store Interactive science exhibits
Direct from the source manufacturer
About
EN 中文
— —
My Account My Cart
Cart 0
Prices are shown to signed-in buyers — to view prices, export the quotation and submit an order.

Nail Music Box

Acoustics

★Exhibit Content: Characteristics of Sound ★Interaction: Mechanical Interaction ★Operation: Rotate the demonstration structure, observe the rolling state of the balls, and listen to the pleasant sounds produced by the balls hitting the metal pins. ★Exhibit Description: The exhibit features an inclined rotatable disc with triangular blocks inside, containing 80 metal pins of varying lengths and several steel balls. When visitors interact, they slowly rotate the disc, and the steel balls roll across it, producing a variety of sounds and rhythms as they roll. Through the process of steel balls hitting metal pins to produce music, the exhibit reflects the three elements of sound: timbre, pitch (determined by frequency), and loudness (determined by amplitude). Steel balls of different sizes roll onto the disc and hit metal pins of different lengths, producing different sounds and rhythms, emitting high, medium, and low notes; because the steel balls never follow the same path twice, you will hear a new melody each time. ★Scientific Principle: The characteristics of sound can be described by three elements: loudness, pitch, and timbre. The subjective perception of sound intensity by the human ear is called loudness, the perception of sound frequency is called pitch, and timbre is the characteristic that distinguishes two sounds with the same loudness and pitch, or the comprehensive response of the human ear to sound waves of various frequencies and intensities. Pitch is mainly related to the frequency of sound waves. The higher the frequency of the sound wave, the higher the pitch. Objects made of the same material but of different sizes produce different sounds when struck.

Options

Review

Principle Display: ★★★ Interaction Effect: ★★★ Ease of Installation: ★★★★★ Durability: ★★★★ Overall Rating: ★★★

Browse all exhibits