Tag Archives: air


愈來愈多捕捉無人機的方式被發展出來,像這個是透過網子與降落傘拉下來:「SkyWall gun stops drones dead, then gives a parachute landing」:

The most important feature of SkyWall is that it not only stops the flight of a drone but, once it captures a drone, it deploys a mini-parachute, bringing the drone back to earth with no damage, allowing authorities to keep it intact for subsequent investigation.

這個 GIF 展示了捕捉的方法與過程:


GitHub 上的 fulldecent/system-bus-radio 這個專案可以打破實體隔離限制傳遞資訊:

Some computers are intentionally disconnected from the rest of the world. This includes having their internet, wireless, bluetooth, USB, external file storage and audio capabilities removed. This is called "air gapping". Even in such a situation, this program can transmit radio.

有些電腦因為種種因素而實體隔離 (像是因為安全因素,或是保密因素),於是就有人研究各種方法傳遞資訊。這隻程式利用 system bus 在 Macbook Air 上產生 AM radio 訊號:

And run it on an Apple MacBook Air (13-inch, Early 2015):


Then use a Sony STR-K670P radio receiver with the included antenna and tune it to 1580 kHz on AM.

這方法好硬... 但也證明了可以藉由這種方法傳遞訊息。

Update:強者我同事 ccnTwitter 上找到一位日本人的 demo 影片: