Picture of an old slide rule from the time of the GDR which the students used to expect. Antique calculator. Stock Image
by boedefeld
Description
Picture of an old slide rule from the time of the GDR which the students used to expect. Antique calculator.
Legal
- Editorial License
Keywords
- ruler
- measure
- evaluation
- tool
- scale
- rule
- dia
- centimeter
- instrument
- metric
- measure
- inches
- number
- calculating machine
- math
- object
- training
- wood
- length
- school
- accuracy
- old
- measuring device
- vintage
- antique
- accounting
- calculator
- machinist
- isolated
- math
- counting
- old
- governing
- linial
- scales
- science
- slide
- slide
- white
- teach
- scientific
- study
- technology