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Swapnil's Message board- III

Hi!

Due to excess comments in the last messageboard, I thought of posting the third version of it. Feel free to ask me questions or talk to me about any random topic. I would be happy if you discuss mathematics problems with me.

Regards,

Swapnil Das.

Note by Swapnil Das
9 months ago

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Do you like Pigeons? Nihar Mahajan · 9 months ago

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@Nihar Mahajan Lol no. Swapnil Das · 9 months ago

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@Swapnil Das Why? They are so simple and soft... Nihar Mahajan · 9 months ago

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@Nihar Mahajan They had done something strange on my head :P Swapnil Das · 9 months ago

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@Pranshu Gaba Which branch did you take at the IISc? Swapnil Das · 1 month, 2 weeks ago

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@Swapnil Das There is just one branch in IISc for the first three semesters (1.5 years) in the undergraduate program. We have six courses for the each of the first three semesters: Physics, Chemistry, Biology, Mathematics, Engineering and Humanities. After three semesters, we will choose one of these subjects as a major and one subject as a minor. Pranshu Gaba · 1 month, 1 week ago

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@Pranshu Gaba What are you plans? What will you take? Swapnil Das · 1 month, 1 week ago

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@Swapnil Das Right now, I think I will take either Maths or Physics as major and biology as minor. However, I still have a lot of time to decide, and my preference changes very frequently. I have no idea what i'll end up taking. Pranshu Gaba · 1 month, 1 week ago

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I would really appreciate if you reply to this very question of mine. - Do photons possess mass?

It might be that they don't have rest mass, but have relativistic mass. Or do they don't have both?

@Michael Mendrin Swapnil Das · 2 months, 2 weeks ago

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@Swapnil Das There was a time when physicists weren't sure if neutrinos had mass. Now not only we know they do, we know that neutrinos have "oscillating" mass, i.e., can vary over time, not related to relativistic effects. Unlike neutrinos, however, photons are still considered to be true massless particles. There are very few "true massless particles", the other two being the gluon and the graviton. All three are gauge bosons, respectively of the electromagnetic, strong force, and gravitational forces. Because they have no rest mass, they always travel at the speed of light in free space. All other particles that have a rest mass can be found to be traveling at considerably less than speed of light in free space.

Physics experiments have been done where light travels very slowly, but not in free space. Michael Mendrin · 2 months, 2 weeks ago

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@Michael Mendrin Thanks a lot! Swapnil Das · 2 months, 2 weeks ago

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@Otto Bretscher Happy Birthday! Swapnil Das · 5 months, 4 weeks ago

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@Swapnil Das Thanks, but it's not my birthday, actually ;) Otto Bretscher · 5 months, 4 weeks ago

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@Otto Bretscher LOL, I suddenly I saw a change in your profile to 60. When is your B'day? I want to wish you. Swapnil Das · 5 months, 4 weeks ago

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@Swapnil Das That change happened a few month ago, on January 27 ;) I usually spend my b-days with the Compañeros in Cuba, but this year, for the special occasion, we went to Alhambra, Granada, Al-Andalus, the most magnificent complex of buildings I have ever seen. Otto Bretscher · 5 months, 4 weeks ago

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@Otto Bretscher Aww, I missed it :( Swapnil Das · 5 months, 4 weeks ago

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@Swapnil Das Better late than never; I appreciate the thought. I can't wait to receive your message next year, in Havana, Cuba. What about your own b-day, Comrade? Otto Bretscher · 5 months, 4 weeks ago

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@Otto Bretscher I am born on the 5th of December, it was very kind of you to ask me, Sir :) Swapnil Das · 5 months, 4 weeks ago

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@Swapnil Das @Otto Bretscher Heppy Bday comrade! Nihar Mahajan · 5 months, 4 weeks ago

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@Nihar Mahajan Did you know that he had is B'day? Swapnil Das · 5 months, 4 weeks ago

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@Swapnil Das 

 Nihar Mahajan · 5 months, 4 weeks ago

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@Jon Haussmann

What if I add the condition : If \(xyz=1\) to the problem? Will the answer be correct then? Swapnil Das · 6 months, 1 week ago

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@Matt DeCross Would you do like to post some problems on thermodynamics? It shall be greatly appreciated, Thanks! Swapnil Das · 7 months, 2 weeks ago

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So, allow me to launch a topic for discussion, a number theory problem. This was the problem I had doubt in, but was unfortunately unable to get a nice solution. Can anyone provide one? Swapnil Das · 9 months ago

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I'm currently studying Algebra and Number theory. Can anyone suggest books for them? Swapnil Das · 9 months ago

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