Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
Xss3
11 days ago
|
parent
|
context
|
favorite
| on:
Eliminating contrails from flying could be cheap
Ukraine solved this even cheaper than cameras. They have an enormous microphone network listening for drones and cruise missiles.
Consider applying for YC's Winter 2026 batch! Applications are open till Nov 10
Guidelines
|
FAQ
|
Lists
|
API
|
Security
|
Legal
|
Apply to YC
|
Contact
Search:
