freqüència
Ravel’s bolero
Maurice Ravel (1875-1937) was a French composer of the 20th century. From his father, a Swiss engineer, he inherited perfectionism, and from his mother, of Basque origin, the attraction for the Spanish musical aesthetic. He composed some forty works for piano, vocal, chamber and symphonic music. The best known is the bolero, an order of […]
Antennas, in neighbor’s backyard
It is recommended to turn off the wifi at night? And for what reason? Are its waves a danger to health? And the microwaves from mobile phone? What power density can we receive from a base station? And from our own phone? Are there leaking from microwave ovens? “Quèquicom” provides the basic knowledge to take […]
What say the birds
Birds whistle, chatter, cackle, scream or howl. But what do they say? Words of love. And these words seduce both females and juries of singing competitions. The canaricultor Gabriel de la Paz explains what notes produce Harz Roller canaries and how birds are selected for competitions. The songs are tailored to the physical characteristics of […]
