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Readers' Feedback
Physics
Page 2 of 3
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I am obviously not a Physics student.
Is it true that sub-atomic particles behave differently when watched ?
KryssTal Reply: Observing a subatomic partical changes its state
I have heard they are invisible so how could they be watched ?
KryssTal Reply: Observation of their interactions
Also, how would you know if they behaved differently when not being watched because you would not be watching them ?
KryssTal Reply: Read "The Search for Schrodingers' Cat" for a discussion of this.
Where did this first statement come from ?
KryssTal Reply: Quantum Mechanics
RESPECETD MADAM
KryssTal Reply: I am an male!
I HAVE THE FOLLOWING QUESTION.:- DOES THE SPIN OF THE ELECTRON DEPENDS ON THE ROTATION OF THE EARTH.IF NOT WHY?THE EFFECT MIGHT BE VERY SMALL INDEED BUT U TELL WHETHER IT DEPENDS ON IT OR NOT.IF YES THEN I WILL SHARE SOME MORE NEW IDEAS WITH U LOOKING FOR YOUR KIND REPLY
I REMAIN YOUR SINCERELY
KryssTal Reply: No it does not. All planets have different rotations whereas the elctrion spin is constant for all electrons. Electrons can only spin in two ways (called + or -). Electrons are governed by Quantum Mechanics - planets are not
Hi,
I'm the mother of a 14 year old daughter. She has had her eyes thoroughly tested and the doctors say she doesn't have any problems. She continues to say she sees "lines" some rooms in school are worse than others, although she claims to have this phenomena all the time. She does have a sensitive nervous system, is it possible that she's seeing "visible light" like a bee? Do you have any idea what it would look like? I had her wear a pair of sunglasses for the first time today w/UV protection and she said it helped. I will continue to experiment with this.
Thanks, please let me know if you have any ideas.
KryssTal Reply: hello
I'm afraid I know nothing about medicine so I cannot help. Perhaps you should do an internet search for "eye condition", "eye disease" or such like. Good luck.
At Disney World, there is an elevator which evidently simulates free fall. It descends accelerating at 32 ft/ses/sec for thirteen stories (let's say 130 ft?). Assuming a negative acceleration (so the passengers won't be squashed) equal to the positive acceleration of the fall, how many seconds of free fall would an occupant experience.
Answers, formulas, hints? Thanks!
KryssTal Reply: The formula you want is d = (1/2) g t^2
where d is the distance, g the acceleration and t the time (seconds). Rearrange to get
t = square root (2 d / g)
Hope that helps.
hi chris, i just read one of your peices on the electromagnetic spectrum and, as a newbie, i want to tell you that is it was very informative and clear and interesting as well, especially with regard to the scientists you profiled. i am trying to understand how telecommunications work and this is a great clarification so thanks!
Dear Kryss,
I was surprised to see that your list of the values of the physical constants contained some values that differed by significant amounts from the values listed in my copy of "The CRC Handbook of Chemistry and Physics" - albeit the edition I have dates back to 1993-4 (74th. ed.). Their values , listed on page 1-1, are taken from the 1986 CODATA Recommended Values. If there has been an update to these values I would be grateful if you would be good enough to supply a reference or web address to these newer values. I am not a physicist but I do need to be sure that the values I use in a conversion program are values currently in use. Thanking you in anticipation of any help you can provide.
Hello Kryss,
In your page The Electromagnetic Spectrum you state that infrared is used in microwaves to vibrate the water molcules.That is not correct a microwave oven uses microwaves to vibrate the molcules which in turn causes heat due to the friction between molcules,the rate at which they are vibrated is why water or food containing water gets hot so fast (1.5-2GHz)
Here is a little something you can try:
you will need two coffee mugs and one incandesent light bulb, fill one coffee mug with water and then place the bulb right-side-up in the other mug,place both mugs in the microwave, set the ovens timer for 10 seconds and see what happens (the water is to abbsorb some microwave energy to take some stress off the magnatron)
NOTE: do not run for more than 10 seconds!!! and let the bulb sit for five minutes before touching it!! also after you do this the bulb will not work.
this is just a little demo to show you that microwaves are present not infrared.
if you want more info on why this works feel free to e-mail me.
Hi
I just finished reading your It's Relative site and found it incredibly useful and interesting - I have to do an assignment on relativity, and your site has given me a better understanding of the theory. Thank you very much!! :)
KryssTal Reply: You're welcome. Good luck with your essay.
Hi
Sorry to trouble you. I just could not get the conversion table for Tesla (weber) to Amp/meter at your web. Kindly advise if possible, thank you.
KryssTal Reply: Hello there. Hope this helps:
Check out my Metric page.
I just visited your site. I am impressed. I have often discussed time over drinks with friends or just people with whom I find myself discussing "things". The fact that some people believe the way we "humans" measure time was created by god. I would like to thank you for giving me a new tool with which to try to enlighten the world.
KryssTal Reply: Thank you for your comments. Good luck with your discussions.