Hacker News
new
|
past
|
comments
|
ask
|
show
|
jobs
|
submit
login
robotresearcher
on May 14, 2015
|
parent
|
context
|
favorite
| on:
Lily – Drone camera
There's a lot of UV in sunlight too. Hence sunscreen. Many birds can see it. Some birds have patterns on them that are only visible in UV. Fun facts.
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:
