This is what is known as vortex lift, the same mechanism responsible for stabilizing the insanely dynamic flight of delta wing aircraft, allowing for a vast increase to the aircrafts angle of attack without causing spectacular, in-flight obliteration
For when you are using the lid, its undeniably a handy addition with two very roomy pockets, ideal for keeping a rain cover or other bits and pieces you need ready access to
the digital system can comprise a learning component where expression profiles, and relevant subject data are compiled and monitored in conjunction with physical assays, and where correlations, e.g., molecular signatures with predictive value for a disease, are established or refined
The storage expands when you need it to and compresses back down when you do not, so it works as a lean day bag or a fuller carry-on depending on what you are up to
Why is the fish hook a symbol of determination