Hydraulic Arms: Jack it up! Lift a load using Hydraulic Arms. Creative Commons, Attribution + Noncommercial + ShareAlike (BY-NC-SA)
Authors: Eugenides Foundation
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This challenge introduces the field of mechanical engineering. Students explore the scientific concepts of hydrostatic pressure, torque, Pascal’s law. By constructing a model of a hydraulic arm, students realize how engineers use their knowledge of the previously mentioned scientific concepts and laws in order to design and build machines used in large scale constructions. Hydraulics has a wide range of applications. The challenge can be implemented from schools to science museum and science fair workshops. The primary aim of this activity is to motivate students and young people to become interested in science and engineering. In general, hydraulic arms can trigger and develop young people’s curiosity while making the process of learning about science much more attractive.
Knowledge acquisition gain
  Skills: Introduction of the world of design process and on how engineers work / encourage problem-solving skills / practical application of science and math in engineering / developing critical thinking / support teamwork, motivation, troubleshooting and learning from failure / understanding of the materials and their role in the engineering process. Science concepts: Pressure / Pascal’s law / fluids / hydraulics/ incompressibility / motion transmission

Workforce in Engineering

Engineering accounts for almost half of the STEM student population. In the EU, jobs for engineers and other researchers grew by 7% in the past five years. Jobs for science and engineering technicians - such as construction supervisors and process controllers - grew by 2%. Overall, they account for 7% of all jobs in the EU. As of 2016, around 15 million European engineering and science workers are employed. Many of them work in the manufacturing, construction, and professional service sectors. In the next years, jobs for engineers and researchers will increase by 13%, and jobs for science and engineering technicians will increase by 2%.

  220 min
Number of staff
Science Discipline
Education Level
12-18 years
Installation effort
No installation required on typical computer
Knowledge prerequisites
Classroom use
Supervision required
Teacher supervision required
Technical requirements
You'll need to buy some materials

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