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Welder
Joins metal parts together using heat — essential for construction, manufacturing, and repair.
Did you know?
Welders work on everything from skyscrapers to submarines — even underwater (hyperbaric welding)
How subjects help
- Physics: Control the heat of an electric arc so metal melts and fuses without burning right through.
- Chemistry: Use shielding gas to keep air off hot metal so the weld doesn't turn weak and brittle.
- Mathematics: Measure angles and gaps precisely so beams line up exactly before they are joined.
- Engineering: Read drawings and weld symbols to join steel for bridges, ships and pipelines.
A famous name
Nikolay Benardos: Russian inventor who introduced carbon arc welding in 1881, the first practical arc welding method.
Try it yourself: Build a paper bridge
- Put the books about a ruler apart and lay one flat sheet across the gap.
- Add coins to the middle one at a time. How many before it sags to the table?
- Now fold a new sheet into a zigzag (like a fan) or roll it into tubes, and test again.
- Which shape held the most? Can you beat your record with one more idea?
Engineers and builders do the same loop for real: build, load it, find the weak spot, improve the shape.
Also try: Draw your room to scale.
Known for it in
USA, Australia, Canada, Germany, UAE