Sentences with phrase «first practical light»

«For years, people were just throwing away that base current, and it was dissipated as heat,» says Holonyak, who invented the first practical light - emitting diode 44 years ago.

He did, however, develop the first practical light bulb in 1880 (employing a carbonized bamboo filament).

Not exact matches

Reflecting on his experience of attending seminary after first gaining considerable experience in the parish, one older participant wondered if maybe we're doing it backwards»; in other words, perhaps schools ought somehow to require practical experience before — or at the beginning of — formal education (such an arrangement would, of course, run counter to essentially all currently respected educational theories) For himself, he said, the practical application of what was being taught in seminary was plain in light of his experience of parish ministry.

«Edison did not invent the first electric light bulb, but instead invented the first commercially practical incandescent light...»

The present work alleviates this issue and takes the first step towards developing practical light emitters based on metamaterials.

In 1968 Vladilen S. Letokhov first proposed that atoms could be trapped in a light beam using the dipole force, and 10 years later Arthur Ashkin of AT&T Bell Laboratories suggested a more practical trap based on focused laser beams.

Doing the longer lighter set first makes too much practical sense for me.

Where the first film never truly made it clear if there was a supernatural force at work and showed nothing that would seem terribly scary in the bright light of day, Blair Witch eventually goes all - in on the impossible, with pulsating skin parasites, flying tents and some CGI that undermines the carefully constructed practical effects.

9 • solve one - step problems involving multiplication and division, by calculating the answer using concrete objects, pictorial representations and arrays with the support of the teacher • recognise, find and name a half as 1 of 2 equal parts of an object, shape or quantity • recognise, find and name a quarter as 1 of 4 equal parts of an object, shape or quantity • Compare, describe and solve practical problems for: lengths and heights [for example, long / short, longer / shorter, tall / short, double / half]; mass or weight [for example, heavy / light, heavier than, lighter than]; capacity / volume [for example, full / empty, more than, less than, half, half full, quarter]; time [for example, quicker, slower, earlier, later]; • measure and begin to record the following: lengths and height; mass / weight; capacity and volume; time (hours, minutes, seconds) • recognise and know the value of different denominations of coins and notes • sequence events in chronological order using language (for example, before and after, next, first, today, yesterday, tomorrow, morning, afternoon and evening) • describe position direction and movement including whole half quarter and three quarter turns PLUS MANY MORE OBJECTIVES!

In Light, author Bruce Watson references the Lighthouse of Alexandria as one of the first instances where light was used in a large - scale manner for a practical purLight, author Bruce Watson references the Lighthouse of Alexandria as one of the first instances where light was used in a large - scale manner for a practical purlight was used in a large - scale manner for a practical purpose.

OK I am a bit too practical, but love the old worldy look of the first light.