# If I get a $1 (or a Euro) . Staff Emeritus Science Advisor Education Advisor ## Main Question or Discussion Point If I get a$1 (or a Euro) .....

If I get a $1 everytime someone asks or says one of these, I'd be able to fund the International Linear Collider all by myself (currently estimated at US$12 billion):

1. Since E = mc^2, and photons have energy, doesn't this mean that photons have mass?

2. Why doesn't an electron crash into the nucleus (or something to that effect)?

3. What do I see when I travel at the speed of light?

4. Evolution is just a "theory".

5. What is the BEST school for physics?

I suppose it is expected that things get recycled since we get new members all the time. But sometime it feels as if we are making zero progress on any of these... <sigh>

Zz.

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Chi Meson
Homework Helper

dextercioby
Homework Helper
How about the double slit experiment...?:yuck:I've been waiting for the day when someone would open a thread about the triple slit experiment,but i guess i'll have to wait,people are not that open to progress...:tongue2:

Daniel.

or how about QM IS WRONG !!!
or how much does a physicist make ?

marlon

or curvature of spacetime is NOT real because everything seems to be straight...

sighs

marlon

dextercioby
Homework Helper
The "twin paradox" is a lot under debate...It would be perfect if everything were strainght,but,unfortunately,some of us are gay...:yuck:

Daniel.

Danger
Gold Member
dextercioby said:
I've been waiting for the day when someone would open a thread about the triple slit experiment,
The porn site's 3 doors down on the left...

dextercioby
Homework Helper
Danger said:
The porn site's 3 doors down on the left...
What would the world be like without the pervs...?

Zapper,i think you meant 1€ in the title...

Daniel.

Galileo
Homework Helper
How'bout a sticky for these topics?
Then everytime someone asks the question, we can yell at them:

Galileo said:
How'bout a sticky for these topics?
Then everytime someone asks the question, we can yell at them:

regards
marlon

Galileo
Homework Helper
marlon said:

regards
marlon
That's a great idea. (Are you being sarcastic?)

brewnog
Gold Member
I know. Why don't we make a thread with all the commonly asked questions, with all their respective answers, and sticky it. When anyone asks, we just tell them to read the sticky!

Galileo said:
That's a great idea. (Are you being sarcastic?)
:rofl:

i would not dare...

marlon

i think that's a good idea too

ZapperZ said:
If I get a $1 everytime someone asks or says one of these, I'd be able to fund the International Linear Collider all by myself (currently estimated at US$12 billion):

1. Since E = mc^2, and photons have energy, doesn't this mean that photons have mass?

2. Why doesn't an electron crash into the nucleus (or something to that effect)?

3. What do I see when I travel at the speed of light?

4. Evolution is just a "theory".

5. What is the BEST school for physics?

I suppose it is expected that things get recycled since we get new members all the time. But sometime it feels as if we are making zero progress on any of these... <sigh>

Zz.
Don't forget the classic:

"I'm an engineer, and even though i don't understand the math, i just proved einstein wrong!!!!!"

Tom Mattson
Staff Emeritus
Gold Member
franznietzsche said:
Don't forget the classic:

"I'm an engineer, and even though i don't understand the math, i just proved einstein wrong!!!!!"
Yep, PF has seen more engineers than I can recall come here and declare that relativity and/or qm is wrong and that classical physics can account for all known observations. It is usually electrical engineers who do this, which is astounding because SR is built into their stock-in-trade: Maxwell's equations.

Another one that makes me want to hit the Delete button when I see it is nonsense that tries to connect consciousness to quantum mechanics. We can thank Frijtof Capra for making that one popular, I think.

Tom Mattson said:
We can thank Frijtof Capra for making that one popular, I think.
Who the hell is that ?

marlon

Chi Meson
Homework Helper
The Author of "The Tao of Physics." It's a staple text for "Physics for Poets" seminars at liberal arts colleges.

It's not so bad as a book, but very dangerous in the wrong hands.

Chi Meson said:
It's not so bad as a book, but very dangerous in the wrong hands.
how is that ? Does it instuct how to make nuclear bombs...Then i should get me a copy

marlon

Staff Emeritus
Chi Meson said:
The Author of "The Tao of Physics." It's a staple text for "Physics for Poets" seminars at liberal arts colleges.

It's not so bad as a book, but very dangerous in the wrong hands.
Obviously, I'm not as "forgiving" as you are, Chi Meson. :) I would categorize it as a VERY bad book, and would never recommend it to anyone, especially in light of the fact that there are other better pop-sci books available.

I actually had to read it in my philosophy of science class as an undergraduate. Even back then, when my QM understanding was still in its formative stage, I knew something wasn't kosher.

Zz.

Tom Mattson said:
Yep, PF has seen more engineers than I can recall come here and declare that relativity and/or qm is wrong and that classical physics can account for all known observations. It is usually electrical engineers who do this, which is astounding because SR is built into their stock-in-trade: Maxwell's equations.

Another one that makes me want to hit the Delete button when I see it is nonsense that tries to connect consciousness to quantum mechanics. We can thank Frijtof Capra for making that one popular, I think.
EE is the largest engineering major for most universities. Usually good job market of EE majors, plus out of all the engineering disciplines EE practitioners are seen to cross over best to other disciplines in the real world.

In my opinion EE gets a wider range of caliber then other engineering disciplines do.

Maxwell's equations are not focused on much in undergrad EE from what I can tell and there SR origin is left out completely.

A sticky for all of the troubling threads sounds interesting. A list of topics could be set up for people to sign up to write a walk through for. Then edited by a mentor approved science advisor for validity.

Sounds like a considerable effort on many peoples parts. Then again with the number of knowledgeable people here you could write a books.

edit:
Or now that I think of it pull it out of post where it was already be explained well.

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Staff Emeritus
This thread was started months and months ago. Obviously, there's a bunch of questions that keep coming up. As has been suggested in this thread, we really should have a sticky, or at least a place where we keep a "standard answer" for these questions. Obviously, it would be too tedious of a task to be done by one person.

Therefore, can I get any volunteers to write on one of these very frequently asked questions? The list of questions are below, at least from my perspective on some of THE most often asked questions around. People are welcomed to submit more suggestions, but I think we should start small. There can be more than one person writing on a topic, and hopefully I can try to edit and merge them together. You will get the credit for writing the response.

The topics are:

1. Since E = mc^2, and photons have energy, doesn't this mean that photons have mass?

2. Why doesn't an electron crash into the nucleus (or something to that effect)?

3. What do I see when I travel at the speed of light?

4. What is energy?

If you would like to volunteer, please PM me and we will make arrangements on how you can submit your article.

Zz.

rachmaninoff
What about those basic calculus FAQ that drive everyone crazy? There are a few that show up about twice a week; Matt Grime requested a sticky for those a while back, if I recall. If you don't mind, I'll list what I perceive to be the most common, exasperating ones:

1) Is 1 = 0.9999... ?

2) What is 0/0, 1/0, 1/infinity, infinity/0, (&c.) ?

3) What is the algebraic form of $\int e^{\pm x^2} dx$?

Maybe I'll write a sticky for one of those? If ZapperZ doesn't mind.

Pengwuino
Gold Member
hahaha i didn't know this thread was old, i read the first post and I thought "haha yah zapper, I see that you got mad at 2 of the threads that are current in the forum". Then i realize the thread is 8 months old.... I don't know if there could be a bigger sign as to whether or not we need a "dumb questions" catagory.

We also need to include "I'm still in high school and I proved Einstein wrong!" except no explanation is needed, just a "shut up, go learn english".

I've also seen the HUP used incorrectly in the same way many many times but i can't recall what people keep doing at the moment.

I think we also need to make that free energy device where a battery powers a generator which powers the battery into one of the dumb ideas/questions. I've seen that plenty of times on this forum.... I think someone once said the government is hiding the fact that its an easy free energy machine. I'm sure the world is so stupid that we are capable of putting microprocessors on pin heads yet that device just went over the head of everyone in the scientific world.

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Staff Emeritus
Pengwuino said:
We also need to include "I'm still in high school and I proved Einstein wrong!" except no explanation is needed, just a "shut up, go learn english".

I've also seen the HUP used incorrectly in the same way many many times but i can't recall what people keep doing at the moment.

I think we also need to make that free energy device where a battery powers a generator which powers the battery into one of the dumb ideas/questions. I've seen that plenty of times on this forum.... I think someone once said the government is hiding the fact that its an easy free energy machine. I'm sure the world is so stupid that we are capable of putting microprocessors on pin heads yet that device just went over the head of everyone in the scientific world.
I think we have ways to handle "crackpot" postings. So those aren't that big of a problem.

What I intended to address are really legitimate questions, but for most of us who have seen these repeatedly, we should at least be able to point to a location in PF, as has been suggested in the thread, and say "Go read that first". And these should really be questions, not "statements".

There are many other questions we could be addressing. I just wanted to start small first and see how it goes, or else it might get too daunting of a task.

Zz.