Finally I can blog at night

Party Rats finger lights available at eBay. Via.

Running shoes designed for menstruating women

Asics' GEL-Kayano 16 came out last year and were designed to accommodate menstruating runners:

When oestrogen is high, and a woman is at her most fertile, the arch drops. Later in the month, when she is menstruating, levels of the hormone are low but her arch is raised.

Via.

*Previously: Nikes designed for Native Americans.

The Writing Ball

"The Malling-Hansen writing ball was the world's first commercially produced typewriter, and it was sold world wide." Via these sites.

*Previously: Fringe's Selectric 251.