Description Chapter 1: Inventions That Changed the World Paper, which greatly contributed to the advancement of learning – 12 Gunpowder, which took countless lives – 14 The compass, which opened the way to unknown worlds – 16 The printing press, which led to the popularization of knowledge – 18 The microscope, which brought remarkable change to medicine – 20 The telescope, which unraveled the mysteries of the universe – 22 The lightning rod, which protects people from lightning – 24 The fire extinguisher, which protects lives and property from fire – 26 The steam engine, the starting point of the Industrial Revolution – 28 The telephone, which vividly carries voices across distances – 30 The incandescent light bulb, which brightens the dark night – 32 The airplane, which opened the door to the sky – 34 The solar cell, a new device that can help save the Earth – 36 Vaccination, a victory over infectious disease – 38 Anesthesia, which freed people from the pain of surgery – 40 The artificial heart, a dream of extending life – 42 The endoscope, which shows the state inside the body – 44 The cell phone, a revolution in communication – 46 The computer, the great machine that changed human life – 48 The internet, which connects the whole world as one – 50 The LifeStraw, which protects the lives of people in Africa – 52 Chapter 2: Inventions That Made Life Convenient The pressure cooker, which cooks food faster and tastier – 56 The toothbrush, which protects dental health – 58 The thermos, which keeps drinks at a steady temperature – 60 The razor, born from an idea inspired by barbershops – 62 Contact lenses, convenient lenses worn directly on the eye – 64 Sunglasses, a way to block the dazzling sun – 66 The zipper, invented because tying shoelaces was such a hassle – 68 The adhesive bandage, made for a beloved wife – 70 The pneumatic tire, a great transformation of the wheel – 72 The elevator, so you don't have to climb tiring stairs – 74 The refrigerator, born from the need to stop food from spoiling – 76 The electric fan, which blows away the heat with cool air – 78 The washing machine, which freed women from household labor – 80 The vacuum cleaner, which instantly removes dust from everywhere – 82 The remote control, for changing channels without getting up – 84 The vending machine, for buying things anytime – 86 The Polaroid camera, for taking a photo and seeing it right away – 88 The traffic light, to stop accidents on the road – 90 The seatbelt, which protects passengers' lives – 92 The escalator, a convenient way to go up and down instead of stairs – 94 The credit card, for making payments freely anytime, anywhere – 96 The ATM, for withdrawing your money anytime, anywhere – 98 The barcode, a convenient system of striped symbols – 100 The Post-it note, which can be easily stuck and removed – 102 Braille, letters for the visually impaired – 104 Chapter 3: Inventions Born by Mistake or Chance Matches, accidentally invented while mixing chemicals – 108 The safety pin, accidentally created while twisting wire – 110 The pencil with an eraser, accidentally made while fiddling around – 112 The hole in a kettle lid, made out of frustration with just one poke – 114 Correction fluid, inspired while watching someone paint – 116 The utility knife, inspired by a bar of chocolate – 118 The tea bag, created when even the packaging pouch was dipped in water – 120 Jeans, discarded tent fabric that became a fashion icon – 122 Nylon, accidentally born from a glass rod – 124 The stethoscope, an idea gained from watching children at play – 126 X-rays, a mysterious light discovered by accident – 128 The microwave oven, from wondering why a candy bar melted so strangely – 130 The Phillips screwdriver, accidentally created while trying to fix a radio – 132 Chapter 4: Inventions Inspired by Nature Barbed wire, inspired by rose vines – 136 Road reflectors, which shine at night like a cat's eyes – 138 The tunnel boring machine, which learned digging techniques from shipworms – 140 The helicopter, which flies like a dragonfly – 142 Radar, inspired by a bat's ultrasonic waves – 144 The high-speed train, inspired by a kingfisher's beak – 146 Boat shoes, inspired by the secret of a dog's paw – 148 Velcro, made after observing burdock burrs – 150 The full-body swimsuit, which lets you swim fast like a shark – 152 Chapter 5: Good Invention or Bad Invention? The flush toilet, which made bathrooms cleaner but pollutes water – 156 Plastic, cheap and convenient but does not decompose – 158 Dynamite, widely used both on construction sites and in war – 160 The rocket, a dream of reaching space or a weapon that threatens humanity? – 162 The air conditioner, which cools us down but destroys the ozone layer – 164 Artificial turf, which has no dust but releases harmful substances – 166 Kills germs but...