Hacker
Tube
Home
Longs
Liked
History
Watch later
Categories
Playlists
Settings
performance optimization
Filters
Documentary
×
4-20 minutes
×
Play all on YouTube
Upload date
Past year
2020s
2010s
2000s
Type
Talk
Lecture
Explainer
Tutorial
Documentary
Interview
Demo
Commentary
Comedy
Music
Duration
Under 4 minutes
4-20 minutes
20-60 minutes
Over 1 hour
Features
Hidden gems
Evergreen only
Sort by
Relevance
Recently recommended
Upload date
Oldest first
View count
Like ratio
Most recommended
No strong matches for “performance optimization”. Here are the closest videos.
15:25
British Army on LSD (Acid) drugs
1.5M views • 7 years ago
Undercurrents Media
Archive footage from 1964 of Royal Marine Commando volunteers filmed on a field exercise after taking LSD at Porton Down. It documents a British military drug trial.
