Because RR Lyrae stars have the same average brightness, astronomers use them as standard candle distance indicators.

FORBES: Astronomers Confirm Milky Way's Most Distant Stellar Stream

At 400 kilovolts, a standard value for long-distance transmission, an alternating current 30 metres (100 feet) from the ground has a fortieth of the loss of a similar cable at ground level.

ECONOMIST: Power transmission

SEC, pointing to the bill's provisions on non-audit services, audit standard-setting and the greater distance of the board from the accountants.

ECONOMIST: Auditors

These include metric to standard conversions, fuel consumption, air speed and distance calculations, and more.

FORBES: Why Some Pilot Watches Have a Slide Rule

Thus, the United States still has some distance to go before achieving this heightened standard of basic education.

UNESCO: II Part Analytic Section

Concord Law is fully accredited by the California Bar Association and the Distance Education Training Council, the industry's national standard bearer, and most of Kaplan College's other online courses also are accredited through their associations and boards.

CNN: Kaplan is starting an online college -- minus the keggers