U.S. considering brightness as the standard light bulb
fecha:2011-06-16 14:15
estado:ha cerrado
pregunta:admin
More than a century, to buy light bulbs is a fairly straightforward and clear the transaction - people from the wattage indicated on the package to determine what kind of bulb to purchase.
But the government wants the next generation as a measure of the brightness of standard bulbs. That means that with the lumen (luminous flux unit) to distinguish between different light bulbs. Consumption in a light bulb to reach 4.4 billion the country, this is a rather difficult task.
Home Dep
mejor respuesta:
no hay por el momento
[todas las respuestas(0)]
1/5 la página próxima la página anterior la primera página la última página
volver
refrescar
WAP página de inicio
versión de web
iniciar sesión
07/26 16:07