Here Is The List Of 5 Lost Technologies<br />1. Sloot Digital Coding System<br />2. The Antikythera Mechanism <br />3. Roman Concrete<br />4. Chronovisor<br />5. Archimedes Death Ray<br />Music Credit:<br />The Deadly Year<br />Please LIKE<br />DON'T FORGET TO "FOLLOW" the channel
