by Maria Popova
Optical illusions, aquatic apes, and the sweat of genius.
The second day of TEDGlobal offered an endless flurry of brilliance, and we have the photos to prove it.
Stefana Broadbent on how modern technology affects connections and the overlapping relationship between the public and the private spheres. The peak for private email is actually 11AM in all countries.
Designer Aza Raskin on the importance of seamless, user-centric interface, stressing that your train of thought is sacred and you should never disturb it.
The amazingly innovative and talented Imogen Heap.
One of the incredible, techie instruments Imogen Heap plays.
Imogen Heap playing 5 instruments while singing. Phenomenal.
Biomimicry expert Janine Benyus shows some incredible applications of principles from nature to the design and engineering of technology.
French designer Matthieu Lehanneur on the theme of invisible design, as if an object's function exists implicitly and invisibly around it.
Matthieu Lehanneur showcases his living air filtration system, Andrea.
Interaction designer Beau Lotto demonstrates some incredible -- literally, as in hard to believe -- optical illusions.
Beau Lotto plays with the relationship between colors and lighting conditions to trick perception.
Henry Markram talks about the brain and the beauty of its diversity.
Chris Anderson asks follow-up questions after David Deutsch's tremendously fascinating, so-smart-most-of-it-is-probably-over-our-head talk about the nature of scientific explanation.
Public space designer Candy Chang shows some of her playful, engaging work.
90-year-old scientist Elaine Morgan, the oldest speaker to have spoken at TED, is tremendously charming and animated as she talks about the controversial Aquatic Ape Hypothesis
Breakthrough Swiss act Sophie Hunger.
The devastatingly talented Eric Lewis, whose piano play is the work of pure, raw, mad genius.
Eric Lewis, in the zone.
...and some more.
The sweat of genius, glistening on the floor below Lewis' piano -- the performance was a magnificent force to watch.
For a full blow-by-blow verbal recap, be sure to skim our live Twitter feed — and stay tuned for more coverage tomorrow.