The transparent Flipper Zero is available in a limited edition of 7,500 units and costs the same as the regular model: $169.99 in the US.

The No. 0 is a famous one in the NBA. Russell Westbrook, Damian Lillard and Jayson Tatum all wear jerseys emblazoned with a number which appears to give them a certain level of inevitability.

College football started allowing No. 0 to be worn in 2020. The NBA has allowed No. 0 since 2006. It may be some time before you start seeing the number on the back of a star player's jersey, though.

The number zero isn't completely foreign to the Raiders. Hall of Fame center Jim Otto donned No. 00 in 1961, never missing a game in his 10-time All-Pro career.

Many mathematical equations can only be solved thanks to a special human invention: the number zero. In many ways, it is a strange concept. It’s a quantity, defined by absence.