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2. Tempered glass - Wikipedia

   en.wikipedia.org/wiki/Tempered_glass

   Tempered glass is used for its safety and strength in a variety of applications, including passenger vehicle windows (apart from windshield), shower doors, aquariums, architectural glass doors and tables, refrigerator trays, mobile phone screen protectors, bulletproof glass components, diving masks, and plates and cookware.

3. Shell (projectile) - Wikipedia

   en.wikipedia.org/wiki/Shell_(projectile)

   A typical 155 mm (6.1 in) shell weighs about 50 kg (110 lbs), a common 203 mm (8 in) shell about 100 kg (220 lbs), a concrete demolition 203 mm (8 in) shell 146 kg (322 lbs), a 280 mm (11 in) battleship shell about 300 kg (661 lbs), and a 460 mm (18 in) battleship shell over 1,500 kg (3,307 lbs).

4. Plasma (physics) - Wikipedia

   en.wikipedia.org/wiki/Plasma_(physics)

   Plasma (from Ancient Greek πλάσμα (plásma) ' moldable substance ' [1]) is one of four fundamental states of matter (the other three being solid, liquid, and gas) characterized by the presence of a significant portion of charged particles in any combination of ions or electrons.