How do you make electricity from sunlight? -- Why does a rubber band always spring back after being stretched? -- How do you make an alloy? -- What have nonstick pans and outdoor clothing got in common? -- How does an optical fiber work? -- Why cant́ a jet airplane fly into space? -- Why doesnt́ a satellite fall out of the sky? -- Why do huge metal ships stay afloat? -- Do hybrid cars have two engines? -- How can a helicopter hover? -- When was the wheel invented? -- Who built the first computer? -- Why does a cell phone lose its signal? -- How do some chemicals make plants grow faster? -- Will robots be cleverer than humans one day? -- What is the worldś largest piece of concrete? -- Do skyscrapers need walls? -- How do you tunnel safely through soft mud? -- What is a space elevator? -- Can you make houses from straw? -- Technology facts -- Find out more -- Glossary.

Introduction--How do you make electricity from sunlight?--Why does a rubber band always spring back after being stretched?--How do you make an alloy?--What do nonstick pans and outdoor clothing got in common?--How does and optical fiber work?--Why can't a jet airplane fly into space?--Why doesn't a satellite fall out of the sky?--Why do huge metal ships stay afloat?--Do hybrid cars have two engines?--How can a helicopter hover?--When was the wheel invented?--Who built the first computer?--Why does a cell phone lose its signal?--How do some chemicals make some plants grow faster?--Will robots be smarter than humans some day?--What is the world's largest piece of concrete?--Do skyscrapers need walls?--How do you tunnel safely through soft mud?--What is a space elevator?--Can you make houses from straw?--Technology facts--Find out more--Glossary--Index.