the 12 metre accelerator won't be launching into the air, this much smaller projectile be fired down the tube and straight into a steel plate. what happens to this after it is launched from that? mostly turns to dust _ is launched from that? mostly turns to dust as _ is launched from that? mostly turns to dust as it _ is launched from that? mostly turns to dust as it hits - is launched from that? mostly turns to dust as it hits the - turns to dust as it hits the end of the tunnel.- turns to dust as it hits the end of the tunnel. oh, my gosh. now, end of the tunnel. oh, my gosh. now. where _ end of the tunnel. oh, my gosh. now, where were _ end of the tunnel. oh, my gosh. now, where were we? _ end of the tunnel. oh, my gosh. now, where were we? oh, - end of the tunnel. oh, my gosh. | now, where were we? oh, yeah. 500 mph. now, where were we? oh, yeah. 500 mph-— now, where were we? oh, yeah. 500 mph. you are going about as fast as a jet- _ 500 mph. you are going about as fast as a jet. the _ 500 mph. you are going about as fast as a jet. the actual— fast as a jet. the actual projectile _ fast as a jet. the actual projectile and - fast as a jet. the actual. projectile and the spinning armour made from carbon fibre, to much the only substance that can withstand the forces involved.— can withstand the forces involved. :: :: , ., ., involved. 700 miles an hour. and in order _ involved. 700 miles an hour. and in order to _ involved. 700 miles an hour. and in order to spin - involved. 700 miles an hour. and in order to spin up - involved. 700 miles an hour. and in order to spin up to - and in order to spin up to nearly 1000 miles an hour today, this entire chamber needs to be a near vacuum. and that's why we can hardly hear anything. that's why we can hardly hear an hina. , , that's why we can hardly hear an hinu. ,, , . anything. system is supersonic. if this anything. system is supersonic. if this were _ anything. system is supersonic. if this were full _ anything. system is supersonic. if this were full air, _ anything. system is supersonic. if this were full air, we - anything. system is supersonic. if this were full air, we would i if this were full air, we would get a sonic boom on every single revolution.- get a sonic boom on every single revolution. you can hear a little bit- _