Why can't we reproduce the sound of very old violins like Stradivariuses? Why are they so unique in sound and why can't we analyze the different properties of the wood to replicate it? |
- Why can't we reproduce the sound of very old violins like Stradivariuses? Why are they so unique in sound and why can't we analyze the different properties of the wood to replicate it?
- How does the position one is in (sitting, standing, laying down), affects the way one processes their emotions?
- Is it true that fasting makes our cells age at slower rates?
- With change in atmospheric pressure, which value will not change, gauge pressure or absolute pressure?
- Can extreme iron deficiency anemia cause WBC and platelet count to decrease over time?
- What is the difference between coke and charcoal?
- What is the importance of the Quality of Soil? And how does one measures it?
- Why does the river decrease its competence along its course, if the last course can be faster than the first?
- How do scientists determine the age of documented specimens when they don’t have any data on supposed adult stage specimens?
- How do materials determine the rate of heat transfer if they have different thermal conductivity properties?
| Posted: 01 May 2022 06:49 AM PDT What exactly stops us from just making a 1:1 replica of a Stradivarius or Guarneri violin with the same sound? [link] [comments] |
| Posted: 01 May 2022 05:34 AM PDT It feels really stupid, but I find that there is a difference between how I process and perceive emotion while sitting vs. while standing. Is this really true, or is just circumstantial? Is there a difference in how humans might react to certain emotions depending on their physical stance? [link] [comments] |
| Is it true that fasting makes our cells age at slower rates? Posted: 01 May 2022 04:36 AM PDT |
| Posted: 01 May 2022 05:42 AM PDT I never encountered in projects where there is atmospheric pressure other than 14.7 psia. In this particular scenario, my atmospheric pressure is 13.3 psia. One of the software has output of 30 psig, assuming the atmospheric pressure as 14.7psig. So if I want to interpret the output, should I keep psig or psia should be constant with varying atmospheric pressure? [link] [comments] |
| Can extreme iron deficiency anemia cause WBC and platelet count to decrease over time? Posted: 01 May 2022 02:51 AM PDT |
| What is the difference between coke and charcoal? Posted: 01 May 2022 02:02 AM PDT Thanks for reading. I have tried googling this but it is very confusing and most sources talk about coal vs. coke, not charcoal vs. coke. I understand the superficial differences, coke being derived from the destructive distillation of coal and charcoal being derived from the pyrolysis of wood. I also understand both are essentially high purity carbon. However the terms are often used differently and in different contexts, and I can't think of what the difference would be (unless they are different allotropes In which case how exactly are they different?). I'm especially interested in when and most importantly why you would use coke for a process instead of charcoal, or vice versa. I was looking up how calcium carbide is produced and Wikipedia says it's made with coke, but other sources seem to imply any carbon powder is sufficient, which is where my confusion originated (if that's helpful). Disclaimer: I have zero intention of actually using or making any of these compounds, I know enough lab safety to know I do not know nearly enough lab safety, I am just interested in the theory and the chemistry behind the processes. [link] [comments] |
| What is the importance of the Quality of Soil? And how does one measures it? Posted: 01 May 2022 05:05 AM PDT I recently heard that the Quality of soil is getting degraded. And it is affecting the amount of nutrients which in turn affects causes nutrient deficiency(Cause of many diseases). [link] [comments] |
| Posted: 30 Apr 2022 10:11 PM PDT I have a question about the working system of the river environment while studying geology. The topic that led me to this question is: why does the competence of a river decrease along its course? I understand from the texts that the competence of a river course is intimately and mainly related to the speed, so the river course of greater speed is able to transport sediments of greater size, presenting a greater competence, and jointly preventing the deposition, and the the opposite happens with rivers of lower speed. But I was mainly in doubt about how speed is established in the courses of a river system. 1.) In some texts, authors considered the upper course of a river to be the fastest in the fluvial system due to the gradient of declination, and consequently, as this slope gradient tends to become less expressive in the middle and lower courses, the speed also reduces, explaining the reduction in the competence of a river along its entire course. 2.) In other texts, they say that the fastest course of a river is the lower course, this is because it presents little friction and turbulence compared to the middle and upper course, even with the slope gradient, the speed of these courses would be limited by friction. Which consideration of the fastest course is correct? And especially, if the second is correct: Why does the river decrease its competence along its course, if the last course can be faster than the first? Thanks in advance. [link] [comments] |
| Posted: 30 Apr 2022 08:13 PM PDT I was reading about the bigfin squid, and the person writing about it claimed scientists have only discovered larval, paralarval, and juvenile stage specimens, but the wording suggested it's all based off of photo/video evidence. If we haven't found a large batch of them to study and compare age differences within, or watched any of them grow over time, how can it be determined that the ones seen aren't adults? [link] [comments] |
| Posted: 30 Apr 2022 08:03 PM PDT Sorry if this is a really dumb question, I was wondering about what the rate of heat transfer would be you were to touch a metal object that has a very low temperature, since laws of thermodynamics states that heat from higher temperature objects (your hand) travels to low temperature objects (the metal object) wouldn't the rate of heat transfer be determines by how thermally conductive your hand is rather then the metal? and since skin is a good insulter I would think theoretically it would take a while for your hand to get cold. However in reality the thermal conductivity properties of the metal determines the rate of transfer not your hand, so why is this the case despite the way thermal energy travels? [link] [comments] |
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