Everyday Magnetism: From Fridge Magnets to Smartphones

Fridge magnets work by sticking to ferromagnetic materials like iron and steel.
Credit cards store data using tiny magnetic strips that can be read by machines.
Speakers and headphones use magnets to vibrate air and produce sound.
Hard drives once relied on magnetism to store trillions of bits of data.
Magnetic sensors inside smartphones help compasses point north.
MRI machines use powerful magnets to look inside the human body safely.
Induction cooktops heat pots and pans through magnetic fields.
Maglev trains float above tracks using strong magnetic forces.
Electric motors in appliances and cars rely on magnetism to create motion.
From doorbells to data storage, magnetism is woven into daily modern life.