The European Space Agency’s seventh Earth Explorer mission, Biomass, launched on Tuesday aboard an Arianespace Vega-C rocket. Biomass, which will study Earth’s forests and their impact on the planet’s climate, lifted off from Kourou, French Guiana, at 09:15 UTC (6:15 AM local time).
Move over, uranium. Get out of here, water. Thorium and salt are the new MVPs of nuclear power.
Study provides new evidence that sensory stimulation of gamma-frequency brain rhythm may promote broad-based restorative neurological health response.
A new contender for a human ‘language gene’ can change the way that mice squeak when it is incorporated into their DNA.
The spacecraft suffered an engine anomaly that left it stuck in Earth’s orbit for decades, and now it’s slated for an uncontrolled reentry.
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Jeffrey Wasserstrom is a historian of modern China.
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There are limits to where physics makes meaningful predictions: beyond the Planck length, time, or energy. Here’s why we can’t go further.
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Ray Kurzweil, one of the world’s leading futurists, has made hundreds of predictions about technology’s future. From portable devices and wireless internet to brain-computer interfaces and nanobots in our bloodstream, Kurzweil has envisioned a future that sometimes feels like science fiction—but much of it is becoming reality.
In this video, we explore 7 of Ray Kurzweil’s boldest predictions:
00:00 — 01:44 Intro.
01:44 — 02:42 Prediction 1: Portable Devices and Wireless Internet.
02:42 — 03:34 Prediction 2: Self-Driving Cars by Early 2020s.
With “each 10% increase in UPF contribution to total energy intake, there is a corresponding 2.7% rise in the risk of all-cause mortality,” the study says
Catenanes are organic compounds with ring-like molecules that are mechanically interlocked. The mechanical locking system in such molecules is so robust that they can only be disentangled via covalent bond cleavage. A recent study has presented a new strategy for controlling the chirality—the property where a molecule has non-superimposable mirror images—of mechanically interlocked molecules (MIMs) like catenanes, without changing its overall shape via non-covalent means.
The researchers successfully demonstrated the synthesis of a compact catenane, BPHC4+ with tunable mechanical chirality, as reported in Nature Synthesis.
Unlike traditional chirality that originates from covalent bonds forming asymmetric centers, in MIMs the chirality can arise from the way parts of the molecule are mechanically linked and not the chirality of the individual rings that are interlocked together. This is known as mechanical chirality.
