Introduced in mid-1976, the Little Professor is a non-printing electronic calculator modified to present simple arithmetic problems. A correct answer prompts another problem on the eight-digit display. An error delivers the message, "EEE." The colorful keyboard shows a professor with whiskers and gl

Custom-made in 1989 by the Minneapolis, Minn., firm of Knut-Koupee Enterprises, this Yellow-cloud electric guitar was designed and used by Prince. The musician's distinctive personal symbol adorns both the top and the side of the fingerboard. Custom work for famous instrumentalists and musicians

Meet Steven Turner, curator at the Smithsonian's National Museum of American History, as he discusses the Smithsonian's scientific instrument collection. This video focuses on the plate developed by the 18th century scientist Chladni whose instruments create visual representations of wave pattern

Meet Steven Turner, curator at the Smithsonian's National Museum of American History, as he discusses the Smithsonian's scientific instrument collection. This video focuses on the history of acoustics during the 18th and 19th centuries, including demonstrations of wave models, tuning forks, siren

Meet Steven Turner, curator at the Smithsonian's National Museum of American History, as he discusses the Smithsonian's scientific instrument collection. This video focuses on instruments that showcase acoustics resonance, including tuning forks on resonator boxes, matching resonators, Helmholtz

Use two online music tools to try your hand at picking instruments to change the mood of a song. Part of an OurStory module entitled Duke Ellington and Jazz, this activity includes instructions, discussion prompts, links, and background information. OurStory is designed to help children

The shofar, one of the earliest known musical instruments, is usually made from a ram's horn. Used in biblical times to signal important events, it is also blown on High Holy Days (10 days in the fall of the year). It is sounded many times during the services of Rosh ha-Shanah (the Jewish New Yea

Although some know of the banjo's use by African Americans, the popular consciousness of the banjo has been dominated by images of white Southern musicians and urban folk singers. But the story is more complex. The banjo migrated from Africa to America in the hands and memories of slaves. Through

This telegraph register, manufactured in accord with the Morse patent, was installed in 1848 in South Bend, reputedly the first telegraph office in Indiana. Stamped on the base is "j. Burritt & son ithaca." Pulses of electricity caused the two vertical electromagnets (on the right) to pull ag

This spur, worn over a riding boot, was made in Mexico in the mid-1800s. Rubbed against the animal's side, spurs are one of the instruments that riders use to direct horses. The spikes on this spur are set on a small wheel called a rowel, making this a rowel spur. Horses and good riding equipment