This next chat session will be held on Friday, August 5th at 11:00pm Central Standard Time (CST) also known as (GMT-6). We usually end after about 2 hours, but you may come and go as you please. You can use the
timezone converter to convert to your local time. Once there, enter the day and time as specified above, then select US/Central in the "From Time Zone" column and your own location in the "To Time Zone" column, then click Convert. Be sure and unclick the "Use Current Date/Time" option. This will give you the time of the chat meeting in your own local time.
I have already converted the chat session to local time for the following locations:
Texas, U.S. - Friday, 11:00pm
California, U.S. - Friday, 9:00pm
Singapore - Saturday, 12:00pm
London - Saturday, 5:00am
Madrid, Spain - Saturday, 6:00am
India - Saturday, 9:30pm
Melbourne, Australia - Saturday, 2:00pm
New Zealand - Saturday, 4:00pm
Sweden - Saturday, 6:00am
Canada, Yukon- Friday, 9:00pm
This will be our tenth official ToeQuest chat meeting. Chat meetings are usually scheduled every two weeks using alternating times: Fri-11pm, Sat-3pm, Sun-7am (Central Standard Time). Since our community has 631 members from 80 countries, I use this schedule to reach the widest audience possible. All members are welcome to participate in the chat or, if you prefer, just listen in.
This chat meeting will be our second one using the
new chat room ! When you click on the
"Chat Rooms" option on the navigation bar you will now see a drop down menu with the new chat room listed as
Flash Chat and the old one listed as
Original Chat . Be sure to choose "Flash Chat".
Not many people were able to make the chat last time and I had a request to repeat it, so I thought I would choose a related aspect of Quantum Mechanics, the Schrödinger's cat thought experiment.
Schrödinger's Cat
Quote:
The basic experiment goes like this... A cat is placed in a sealed box. Attached to the box as a device containing a radioactive substance and a canister of poison gas. The experiment is configured so that there is a 50% chance of the nucleus decaying in one hour. If the nucleus decays, it will emit a particle that triggers the device to open the canister of poison gas and kills the cat. According to QM the unobserved nucleus is described as a superposition of decayed and undecayed nucleus. It is only when the box is opened that the experimenter observes a dead or living cat.
The question is: when does the system stop existing as a superposition of states and becom one or the other? This experiment illustrates that QM is incomplete without some rules to describe when the wavefunction collapses and the cat lives or dies instead of being alive and dead at the same time.
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This topic can lead us in a number of different directions. One path leads to the many interpretations of Quantum Mechanics of which the following are a few.
- Copenhagen interpretation
- Consistent histories
- Many-worlds interpretations
- Instrumentalist interpretations
The Instrumentalist interpretation is an interesting one. This is the view that QM and other such theories are only useful as a mathematical model or as an instrument to make predictions about phenomenon. Their ability to explain the corresponding reality is meaningless.
Please add your pre-chat comments to this thread. If you have any topics you would like to discuss, you might post it here ahead of time.
References:- Wikipedia -- The Free Encyclopedia
- In Search of Schrodinger's Cat -- Amazon.com
- Quantum Suicide -- I don't recommend this!
If you are a regular chatter, or interested in attending these chats, please send me three preferences - 1st, 2nd, and 3rd choice for day of the week and time. I'll try to hold future chat sessions at times when more people are likely to be present.
If you haven't been to the new chat room yet, better go check it out. I've heard reports of a chatter named Carly who likes to show up when you are the only person present!
Regards,
--Robert