Everything posted by Ghideon
-
How much energy does a typical digital watch use?
Assuming that a LR41 battery lasts for 5 years in a digital wrist watch and initially contains 30 mAh then a quick calculation gives the average current 0,46 micro amperes.
-
Is the key of this encryption(transposition cipher) correct? I think it should've been 524736, what do you think?
Additional note: given the limited information supplied in the question I have assumed columnar transposition.
-
Is the key of this encryption(transposition cipher) correct? I think it should've been 524736, what do you think?
The message, the chiphertext and the key seems to match as far as I can tell. Key 5263174 is correct.
-
How do drives be reset?
Can you clarify the question a little? Protons are only positive (+). I do not know any drive that fits your description; are you asking about a hypothetical device? If you wish to discuss regular off-the-shelf hardware do you wish to discuss SSD* or HDD or both? *) HDD, hard disk; electro-mechanical data storage device that stores and retrieves data using magnetic storage. SSD, solid-state storage device that uses integrated circuits to store data persistently
-
Looking for something heavy but small
Are the numbers correct? 0.05" sounds small for an usb receiver. If the numbers are indeed correct my best guess is that the volume is too small to fit enough mass even if Osmium or Iridium is used. (Disclaimer, I haven't cross checked my quick calculations)
-
My friend created a theoretical heatless pseudo-infinite energy source using blueshift and rapid spatial expansion.
Thanks for the reply Sorry, no it does not. There is not enough information to start a scientific discussion or make any assumption. heatless pseudo-infinite energy isn't my area of expertise but when major search engines draws a blank about some physical concept it likely does not exist and therefore can not work. Side note: Using software to automate this would be within my area of expertise ...
-
My friend created a theoretical heatless pseudo-infinite energy source using blueshift and rapid spatial expansion.
How does your friend, who created the thing, answer your question? I do not know what a heatless pseudo-infinite energy source using blueshift and rapid spatial expansion is, can you provide an explanation?
-
What do you regard as the most basic operations in Mathematics ?
Thanks for your reply. I agree to your points and the example provided is a good illustration worthy some thoughts. I considered the ability to distinguish between things a skill necessary to survive rather than an example of primitive/basic mathematic operators. An example is the ability or required knowledge to sort out edible berries and reject poisonous ones. This means that I could interpret "primitive"/"basic" in different ways*: 1 Early use of mathematics in human history. 2 The first kind of primitive operator I grasped. 3 Primitive operators defined in contemporary mathematics. I would probably apply different lines of thought regarding the title's question depending on which one of the alternative interpretations I choose. *) There are others, these are the ones I see from my participation and comments so far in this topic.
-
What do you regard as the most basic operations in Mathematics ?
">" I think this was one of the first "mathematics-related" things I grasped* before counting, numbers, addition or other mathematics. That there could be more (or fewer) of something and more or fewer of different things. Understanding for instance "there are more apples than there are oranges in this picture" came before counting items in the picture. I have no formal or mathematical argument, this is more of a personal reflection. I note that @iNow's argument probably could be used here to put divison "/" before comparison ">"; first one realises that there are apples and oranges rather than one singe pile of fruit. Then comparisons (or other operations) can take place. edit (just saw Studiot's post): I note that my example above starts with this, I did not think of that as an operation. *) This was early in life so my recollection may be incorrect. I did of course not know or understand the specific notation or the mathematical implications at that time.
-
Today I Learned
Today I learned that you are not allowed to remove litter from this grass covered beach. The reason is related to science. The beach is used as a reference for marine litter. The information collected from the reference beaches about the litter that floats ashore can be used in scientific modeling or studies. (Obviously you are also not allowed to add any litter but that rule applies nation wide in public places.)
-
Electric charge – a different approach
I’ll try to explain once the material is posted in a format that can be quoted.
-
Electric charge – a different approach
That does not answer the question.
-
Electric charge – a different approach
Then please explain how it is valid in physics to state that those two equations are equal .
-
Electric charge – a different approach
The introduction seems to claim that photon energy hv equals the energy given by E=mc2. Please clarify how it is valid in physics to do so. (accessing the forum by phone, I don’t have time to figure out how to quote from the pdf attached )
-
A Time Experiment
I know about Shrödinger's thought experiment. I do not know why you refer to that thought experiment in this case. You made claims about time and movement, which was my reason for asking about the case of 0 K and particle decay as an example. Particle movement (or their kinetic energy) and temperature is related, which one reason it is easy to refute your claims as they were stated. You added the cat to the discussion after earlier claims were found to be wrong. They are still wrong.
-
A Time Experiment
Im still hoping for some relevant answer about about particle decay where your claims are contradicted by scientific observations.
-
A Time Experiment
I don't know how the cat got entangled in this topic so here is my interpretation: Before I read the first post in this thread there were a possibility that the ideas presented were correct / incorrect (similar to the cat being dead / alive before the box is opened in Schrödinger's thought experiment) Now that I have read the ideas and compared them to documented scientific observations (opened the box / performed an observation Schrödinger's thought experiment) I've found that the presented ideas are wrong. This fact is independent of Copenhagen interpretation, many-worlds interpretation or other variants; the claims regarding time and movement are incorrect and refuted by (for instance) particle decay at absolute zero. This threads state is similar to the cat; if the cat is dead when the box is opened the cat will stay dead until new physics (or, maybe in this case, progress in animal health care & resurrection) emerge. Just as the presented ideas will be stay wrong until supported by discoveries, theories and observations. Attempts to avoid the questions and arguments presented by asking me to "solve" Schrödinger's does not count as scientific evidence.
-
A Time Experiment
Ok. You brought Schrodinger Cat into the discussion but let's remove it from the discussion again. That does not change the fact that particle decay contradicts your claims. Would you mind addressing that instead of brining in unrelated topics?
-
Empirical observations of consciousness demand a new understanding of physics
Thanks for your reply, it does not answer the question how faster than light signalling is possible but raise more questions. I'm also curious why there is no example of evolution resulting in some more efficient or competitive use of this phenomenon you describe. Some questions: Per your idea, how does for instance kidney donation work? How do the particles of a kidney "transfer" from one human consciousness to another? Do conjoined twins, according to you, have a single consciousness or separate ones?
-
Empirical observations of consciousness demand a new understanding of physics
As far as I know there are no established models allowing faster than light* communication. What mechanism do you propose? *) Faster than speed of light in vacuum, c
-
A Time Experiment
I do not see a connection to the discussion about your claims and how they are incompatible with observations, sorry.
-
A Time Experiment
I am waiting for a reply* about particle decay where your claims are contradicted by scientific observations. *) direct link https://www.scienceforums.net/topic/127439-a-time-experiment/?do=findComment&comment=1213500
-
A Time Experiment
I'd say quite the opposite; accurate predictions about rate of decay can be made regardless of movement. Decay is stochastic, you need a sample that is large enough to make predictions, not movement. Movement does not add accuracy. ( We can't predict when one specific particle will decay, nuclei half-life allows for good approximations for large samples on average. I think a detailed explanation is off topic.)
-
A Time Experiment
Let's assume a sample of a radioactive isotope at rest at a temperature of 0 K*. The half-life of the isotope depends on time, as far as I know, not any movement. This seems to contradict your claims above, can you clarify? *) Absolute zero. The isotope could for instance be sodium-26
-
No material can have a net negative charge. [Answered: Wrong!]
That introduces even more contradictions (easily observed or logically concluded). Since your are learning I'll give you some time to reason and spot the problems before I post an explanation, this is speculations section after all...