Top 3 facts that would blow the facebook generation away?

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SUMMARY

This discussion highlights three astonishing scientific facts that challenge common perceptions, particularly among the Facebook generation. First, actual images of atoms have been captured using electron microscopes, debunking skepticism about atomic existence. Second, the concept of matter waves illustrates that the wave behavior pertains to the probability of particle location rather than the particles themselves being waves. Third, the phenomenon of length contraction in special relativity explains how muons, which have a short lifespan, can reach the Earth's surface due to the contraction of distance in their frame of reference. These insights reveal profound truths about the nature of reality and challenge misconceptions.

PREREQUISITES
  • Understanding of basic quantum mechanics concepts, including matter waves.
  • Familiarity with special relativity and its implications, particularly length contraction.
  • Knowledge of atomic structure and the significance of atomic imagery.
  • Awareness of the Copenhagen interpretation and Many Worlds interpretation of quantum mechanics.
NEXT STEPS
  • Explore the implications of the Copenhagen interpretation versus the Many Worlds interpretation of quantum mechanics.
  • Research the principles of special relativity, focusing on time dilation and length contraction.
  • Study the advancements in electron microscopy and its applications in modern science.
  • Investigate the historical context and significance of early inventions like the vending machine and steam engine by Hero of Alexandria.
USEFUL FOR

This discussion is beneficial for physicists, science educators, students of quantum mechanics, and anyone interested in understanding the complexities of modern scientific concepts and their historical context.

  • #31


What is required for time travel then?
You enter a black box, wait for time t, and leave the box, the time in the world has advanced by t+x with x>0. Is that time travel?
In science fiction stories, t is something like seconds to hours and x can be several years. With the ISS, t is something like one year and x is some milliseconds.Freezing something does not change time - it slows down chemical processes (but not nuclear decays and other stuff), but not the time itself.
 
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  • #32


mfb said:
What is required for time travel then?
I don't know. As far as I know time travel is just a nonsensical grouping of agile terms.

mfb said:
You enter a black box, wait for time t, and leave the box, the time in the world has advanced by t+x with x>0. Is that time travel?
No.
 
  • #33


Top 3 facts that would blow the facebook generation away?
1. I remember being blown away when I learned that magnetic forces can be explained as a modification of electric forces due to relativistic effects. (See E. Purcell's text on Electricity and Magnetism.)

2. Now I am blown away that a good quantitative theory of magnetism was developed before people knew anything about relativity.

3. Likewise, that thermodynamics was developed before the existence of atoms and molecules was established.
 
  • #34


Top 3 facts that would blow the facebook generation away?
1. Not everything on Wikipedia is true.

2. Before GPS when it was possible to get lost.

3. There was a time before Al Gore when the internet didn't exist.
 
  • #35


Borg said:
1. Not everything on Wikipedia is true.

2. Before GPS when it was possible to get lost.

3. There was a time before Al Gore when the internet didn't exist.

Minor point... It's still possible to get lost with GPS. For instance, my car is thoroughly convinced that I drive through a cornfield on my way to work ("Recalculating... Don't forget the butter..."), but the reality is that I drive over an ex-cornfield that's been turned into a tollway and the maps haven't been updated.
 
  • #36


I think a few people are missing the point of the OPs question. The "Facebook" generation don't have a clue about Einstein, or relativity, or muons... Need simpler facts that they can understand.
 
  • #37


larrybud said:
I think a few people are missing the point of the OPs question. The "Facebook" generation don't have a clue about Einstein, or relativity, or muons... Need simpler facts that they can understand.
I am one of the facebook generation (it became popular in my mid-teens but before that myspace and MSN were ubiquitous) and the suggestion that we need simpler facts or that there are 3 things that would specifically blow us away over any other demographic is both foolish and insulting.
 
  • #39


larrybud said:
I think a few people are missing the point of the OPs question. The "Facebook" generation don't have a clue about Einstein, or relativity, or muons... Need simpler facts that they can understand.
The text of your tweet is too long.
 
  • #40

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