http://interestingengineering.com/10-futuristic-materials-you-should-know-about/ Transparent alumina is three times stronger than steel and is as you may have guessed, transparent. Imagine skyscrapers that look like floating blocks or the ability to see inside a complex machine as it’s working – perfect for maintenance. Here is the list, click the link at the bottom for descriptions and photos. 1. Aerogel 2. Carbon nanotubes 3. Metamaterials 4. Bulk Diamond 5. Bulk fullerenes 6. Amorphous metal 7. Superalloys 8. Metal foam 9. Transparent alumina 10. E-textiles via 10 futuristic materials you should know about |Interesting Engineering.