"However, these hidden layers are like a locked black box: we see the input and output, but what is happening inside is not clear," says Danilo Vasconcellos Vargas, ...

“However, these hidden layers are like a locked black box: we see the input and output, but what is happening inside is not clear,” says Danilo Vasconcellos Vargas, ...

The antennas, which have been found around the hills over the past year, all come attached to a solar panel and a locked battery box. In recent months, activity seems to have ramped up. The latest ...