Friday, March 29, 2019
Friday, March 15, 2019
Getting Back on the Horse
These are some hardy men.
"NASA
astronaut Nick Hague and his Russian colleague Alexey Ovchinin, who
both survived a dramatically aborted Soyuz launch last year, were joined
on the smoothly-executed trip by NASA astronaut Christina Koch.
The
rocket blasted off without incident from Russia's Baikonur cosmodrome
in Kazakhstan and docked at the ISS less than six hours later, more than
400 kilometers (249 miles) above the Earth at 01:01 GMT, a few minutes
ahead of schedule.
During
a live broadcast via high-definition cameras aboard the ISS, the
mission commander Ovchinin reported that the mooring mechanism was
engaged. A NASA commentator then confirmed the "capture."
The
liftoff was closely watched after the two men's space journey was cut
short in October when a technical problem with their Soyuz rocket
triggered a launch abort two minutes into the flight."
Here is the failed MS10 launch:
Thursday, March 14, 2019
Quantum Monism
I have always been a bit disturbed by the many worlds view of parallel universes. I could not make any sense of it and it offended my reasoning as to how the universe operates. Upon reading an article in "Scientific American", a missing piece of information fell into place and suddenly the universe was whole again.
"Both quantum monism and Everett’s many worlds are predictions of quantum mechanics taken seriously. What distinguishes these views is only the perspective: What looks like "many worlds" from the perspective of a local observer is indeed a single, unique universe from a global perspective (such as that of someone who would be able to look from outside onto the entire universe).
In other words: many worlds is how quantum monism looks like for an observer who has only limited information about the universe. In fact, Everett’s original motivation was to develop a quantum description of the entire universe in terms of a "universal wave function.” It is as if you look out through a muntin window: Nature looks divided into separate pieces but this is an artifact of your perspective."
You can read the entire article here:
"Both quantum monism and Everett’s many worlds are predictions of quantum mechanics taken seriously. What distinguishes these views is only the perspective: What looks like "many worlds" from the perspective of a local observer is indeed a single, unique universe from a global perspective (such as that of someone who would be able to look from outside onto the entire universe).
In other words: many worlds is how quantum monism looks like for an observer who has only limited information about the universe. In fact, Everett’s original motivation was to develop a quantum description of the entire universe in terms of a "universal wave function.” It is as if you look out through a muntin window: Nature looks divided into separate pieces but this is an artifact of your perspective."
You can read the entire article here:
Quantum Monism Could Save the Soul of Physics
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