«Znanie»
«Znanie»
Efim Malitikov
Presentations & Papers
Publications
Events
Diplomas, Awards, Titles
«ZNANIE» over the past 70 years
Committee
Founders
The Committee’s composition
UN documents on Adult Learning
Collaboration Agreement
International Association «ZNANIE»
Milestones
Press page
Management
Public Chamber
Alexander Rahr
Club of Rome
IGMASS
Videos of global disasters
IGMASS statements
IGMASS presentations
Publications on IGMASS
Monitoring
UN documents on environment protection
News coverage
Presidential addresses
Direct Line with Vladimir Putin
Multimedia
Videos
Astronomy
Science Popular Channels
Kurzgesagt – In a Nutshell
Veritasium
Photos
Events
Contacts
Ru
HOME
Veritasium
Where Do Trees Get Their Mass?
Where Do Trees Get Their Mass?
Мы рекомендуем
18 February 2022
5 Unsolved Space Mysteries | Answers With Joe
18 February 2022
Why Scientists Can’t Agree On The Age Of The Universe – Featuring Dr. Becky | Answers With Joe
18 February 2022
The Woman Who Recorded Everything | Answers With Joe
13 March 2023
Do We Have to Get the Slow-Mo Cam?? | Street Outlaws | Discovery