In some hours, at midnight between Friday and Saturday, ten more countries will join the European Union. The EC-supported Venus Transit 2004 (VT-2004) programme is active in almost all of these, with VT-2004 National Nodes already established the Czech Republic, Hungary, Malta, Poland, Slovenia and Slovakia; more are likely to follow soon. The organisers include the Astronomical Institute of the Academy of Sciences of the Czech Republic and the next VT-2004 meeting will be held near Prague on May 7-9 (see below).
Venus Moves Closer
"Catching up" with the Earth in its orbit (see VT-2004 Animation C), Venus will be placed exactly between the Sun and our planet in the morning of June 8, the day of the extremely rare event, known as a "Venus Transit". Observers in the eastern hemisphere will be able to see Venus as a black spot slowly crossing the solar disk during about 5 1/2 hours.
Richard West | alfa
A better way to weigh millions of solitary stars
15.12.2017 | Vanderbilt University
A chip for environmental and health monitoring
15.12.2017 | Friedrich-Alexander-Universität Erlangen-Nürnberg
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
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