December 23, 2025, marks the 50th anniversary of the Metric Conversion Act, designed to bring US weights and measures in line with the rest of the world. The United States is one of the last holdouts ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

If you're a casual track and field fan, you've probably heard of the 4x100 and 4x400 meter relays and can likely deduce how they are run from the names of the events alone. However, those are not the ...

An inside look at an opaque process by Paul Gompers, Will Gornall, Steven N. Kaplan and Ilya A. Strebulaev Over the past 30 years, venture capital has been a vital source of financing for high-growth ...

If you’re a newcomer to running or thinking of graduating to longer challenges, you might need some help working out how far you need to go to hit training or race day targets. Maybe you need to ...