The first plane ever to fly faster than the speed of sound was the X-1 in nineteen forty-seven.

VOA: special.2010.07.07

Physicists use super-powerful magnets to speed particles and control radiation like X-rays.

VOA: special.2010.10.08

The X-15 set height and speed records greater than those expected.

VOA: special.2010.07.07

The highly responsive linear motor in the XF18-55mm lens combines with the high-speed signal readout of the X-Trans CMOS sensor and the EXR Processor Pro, to achieve a huge leap in AF speed and precision performance.

ENGADGET: Fujifilm grows X-series mirrorless lineup with 16.3-megapixel X-E1

Both use vast particle accelerators to speed up electrons, which spray out X-rays as they pass around the accelerators.

BBC: Van Gogh's Flowers In A Blue Vase damage seen in X-rays

Below is a video showing Need for Speed: Shift on the Verizon Wireless Droid X, which is a good example of a brand crossing over to multiple audiences.

FORBES: Connect