Development of space proven technologies, fundamental research in microgravity and preparation future missions all benefit from next generation drop tower facilities like the Einstein-Elevator. The facility is being made available within a DFG core center Hannover.

When a drop of a viscous fluid is deposited on a bath of the same fluid, it is shown that its coalescence with this substrate is inhibited if the system oscillates vertically. Small drops lift off when the peak acceleration of the surface is larger than g. This leads to a steady regime where a drop can be kept bouncing for any length of time. It is possible to inject more fluid into the drop to...

Earthquake rupture is a notoriously complex process, at all observable scales. We introduce a simplified semi-dynamic crack model to investigate the connection between the statistical properties of stress and those of macroscopic source parameters such as rupture size, seismic moment, apparent stress drop and radiated energy. Rupture initiation is treated consistently with nucleation on a linea...

Composition and quantity per person of Municipal Solid Waste (MSW) were analyzed in six municipalities with different collection systems. Samples of residual waste were sorted, classified and weighed in 21 categories. Collection data of total waste flow, including sourcesorted recycling materials, in the same area was analyzed. Multivariate data analyses were applied. The main questions to be a...

We present a hybrid brain-computer interface (HBCI) composed of a motor imagery-based brain switch and a headtracking device. Normal gaze-only (either head or eye gaze) interfaces suffer from a Midas Touch problem where unwanted selection of commands is triggered by subjects gazing at objects for too long. We use a BCI to provide a nontouch communication channel. Subjects were able to select an...

A finite drop of fluid with large viscosity μ and density ρ is initially at rest hanging under gravity g from the underside of a solid boundary. The initial configuration may be of a general boundary shape, with (vertical) maximum length L(0) = L0 and (horizontal) maximum width w0. The subsequent motion, drop length L(t) as a function of time t , and boundary shape is determined both by a slend...