For Americans struggling with stagnant wages, under- or un-employment, one of Donald Trump’s most appealing campaign promises was to bring manufacturing jobs back to the U.S.
Navigating the complexities of policy, tariffs and geopolitics would make that hard enough already for the president elect. But technology will make this promise nearly impossible to fulfill.
Why? Because manufacturing jobs are increasingly done by robots, not people.
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Researchers have developed the world’s first light-seeking synthetic nanorobot that can help surgeons remove tumors and enable more precise engineering of targeted medications.
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With size comparable to a blood cell, these tiny robots have the potential to be injected into a patient’s body, the study said.
For example, ordinary baker’s yeast cells normally produce a lot of alcohol, a biofuel, when fed sugar extracted from the edible kernels of corn plants. NetSurgeon designed genetic surgeries that convinced the cells to make more alcohol when fed a type of sugar found in the inedible leaves and stalks.
The research is published in PNAS Early Edition.
Posted in particle physics, quantum physics
What would happen if an electric current no longer flowed, but trickled instead? This was the question investigated by researchers working with Christian Ast at the Max Planck Institute for Solid State Research. Their investigation involved cooling their scanning tunnelling microscope down to a fifteen thousandth of a degree above absolute zero. At these extremely low temperatures, the electrons reveal their quantum nature. The electric current is therefore a granular medium, consisting of individual particles. The electrons trickle through a conductor like grains of sand in an hourglass, a phenomenon that can be explained with the aid of quantum electrodynamics.
Flowing water from a tap feels like a homogeneous medium – it is impossible to distinguish between the individual water molecules. Exactly the same thing is true about electric current. So many electrons flow in a conventional cable that the current appears to be homogeneous. Although it is not possible to distinguish individual electrons, quantum mechanics says they should exist. So how do they behave? Under which conditions does the current not flow like water through a tap, but rather trickles like sand in an hourglass?
