That such a similar mechanism is used for cellular transportation and to set a 24-hour clock is astounding and represents evidence for convergent evolution — the independent evolution of similar ...

You’ve doubtless seen those ubiquitous clock modules, especially when setting ... gears to divide the rotation rate down to once per 24 hours, once per hour, and once per minute.

The modulating signal then comes from the bacteria's 24-hour circadian clock, which acts as an internal time-keeping mechanism. This finding answers a long-standing question in cell biology—how ...

The 24 Hours exhibition at Milan design week features ... with two rotating hands concealing the clock mechanism," read Campardo's description. "A playful twist on a classic design object, the ...

In the normal, light:dark and fluctuating environment, circadian clocks create 24-hour cycles ... than 24 hours. "What this reveals to us is that there's some internal mechanism that is generating ...