Here we experimentally demonstrate that polarization quantum states including general qubits of single photon and entangled states can survive well after travelling through seawater. We perform experiments with seawater collected over a range of 36 kilometers in the Yellow Sea. For single photons at 405 nm in a blue-green window, we obtain an average process Read more about Towards quantum communications in free-space seawater[…]
Two founders of The Pirate Bay have been ordered by a court in Finland to pay record labels more than $477,000 in compensation. Fredrik Neij and Gottfrid Svartholm were found liable for ongoing copyright breaches on the site. Neither appeared to mount a defense so both were found guilty in their absence. In November 2011, Read more about Pirate Bay Founders Ordered to Pay Music Labels $477,000[…]
Antennas receive information by resonating with EM waves, which they convert into electrical voltage. For such resonance to occur, a traditional antenna’s length must roughly match the wavelength of the EM wave it receives, meaning that the antenna must be relatively big. However, like a guitar string, an antenna can also resonate with acoustic waves. Read more about Mini-antennas 100,000 x more efficient, could be used for brain interface machinery, anything tiny.[…]
Bad news, Sonos customers: to lay the groundwork for its upcoming voice assistant support, the company is asking users to agree to an updated privacy policy, one that includes both mandatory data collection rules and a mention about future device functionality. Should you disagree with said policy update, your device’s basic functions could stop working, Read more about Sonos strongarms customers into giving up privacy, or hardware stops working. Here’s how to to Stop Your Sonos From Collecting (As Much) Personal Data[…]