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Endy0816

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Posts posted by Endy0816

  1. 1 hour ago, fredreload said:

    I see, guess I have to think of an alternative method, thanks for the heads up. As you can see I am trying to focus enough photon energy on a "spot" to create length contraction. Fitting the photon energy into the E=mc^2 equation E=photon energy.

    Length contraction happens any time you travel anywhere at any velocity. You don't need to 'create' it. Length contraction only becomes noticeable at very high velocities however.

    Think of the distance you want to cross as a spring. The closer your velocity is to c, the more the spring is compressed. While you still have to cross the whole distance, there is less of that distance for you.

     

    Bit dated but this covers Relativity really well. Read it when I was younger and learned a lot from it. Happily online for free now.

    https://archive.org/details/TheUniverseAndDrEinstein/mode/2up

     

  2. 2 hours ago, Strange said:

    Maybe more accurate to say that the Dyson company worked with a medical technology company to develop a new ventilator.

    I read an article about how the UK decided that, instead of getting manufacturers to license designs of existing ventilators and manufacture them (they could have either paid the license fee or mandated that it was waived), decided that they would encourage manufacturers to come up with their own designs. Based on a fairly dubious spec from the government, which has since been rejected as inadequate by medical specialists. Never mind the extra time needed for testing and certification. Crazy, but typical of the "we don't need experts; how hard can it be" attitude of the current bunch of Eton clowns.

    I'd wondered about that claim. DIY plans exist that could presumably be adapted to utilize Dyson parts, but was thinking something hospital-ready would take longer.

  3. 1 hour ago, StringJunky said:

    That's a working hypothesis:

     

    lol, nice to see not too far off from what the real researchers are thinking.

    Obviously phagocytes exist so perhaps other cells can use the same method to engulf them when needed. Possibly they have some means to 'infect' a cell themselves too.

  4. 8 hours ago, sangui said:

    Yes, but they show than we have free mitochondria are present even in physiological state.

    So it must be usefull in another way, no ?

    Possibly.

    I know if I had my choice I'd use them to help repair/replace other mitochondria that have suffered damage, but I don't know if such a mechanism actually exists. We do know their distant ancestors entered the ancestral cell at some point however.

  5. 1 hour ago, Strange said:

    It would be an interesting exercise to work out how much energy you would need to extract to cause, say, an extra leap second to be needed.

    It would be. I'm sure it'd take a ton to speed up that process. I've read a few analysis saying we could power our civilization for a thousand years with just a bit of that energy.

  6. Unfortunately you can't steal energy from gravity(buoyancy = weight of displaced fluid). Going to at best break even, but will likely take more energy overall than you get back out.

  7. 20 minutes ago, Bushranger said:

    The cost of the lithium polymer jumper was $79.7...not much different than a new lead-acid battery.

    Recycling lead batteries is not not normally a factor in auto manufacturing (secondary smelters are the ones who deal with that), so why would an auto manufacturer care?

    Provide the specs or name of the jumper. Not giving enough info to fully compare.

    The manufacturers save money buying the cheaper nigh endlessly recycled batteries. Most lithium car batteries are roughly $100 more. Now multiply that per car sold...

  8. 13 minutes ago, Bushranger said:

    The cost of the lithium polymer jumper was $79.7...not much different than a new lead-acid battery.

    Likely has a shorter lifespan or other undesireable characteristics.

    Main thing is that lead acid battery is mostly recycled material. You don't have to mine or ship as much material, keeping costs down.

  9. In labs, researchers typically only modify existing viruses.

    Quote

    The smallest viruses in terms of genome size are single-stranded DNA (ssDNA) viruses. Perhaps the most famous is the bacteriophage Phi-X174 with a genome size of 5386 nucleotides.[2] However, some ssDNA viruses can be even smaller. For example, Porcine circovirus type 1 has a genome of only 1759 nucleotides[3] and a capsid diameter of only 17 nm.[4] As a whole, the viral family geminiviridae is only about 30 nm in length. However, the two capsids making up the virus are fused; divided, the capsids would be 15 nm in length. Other environmentally characterized ssDNA viruses such as CRESS DNA viruses, among others, can have genomes that are considerably less than 2,000 nucleotides.[5][6]

    The smallest RNA viruses in terms of genome size are small retroviruses such as rous sarcoma virus with genomes of 3.5 kilo base pairs (kb) and particle diameters of 80 nanometres (nm). The smallest double-stranded DNA viruses are the hepadnaviruses such as Hepatitis B, at 3.2 kb and 42 nm; parvoviruses have smaller capsids, at 18-26 nm, but larger genomes, at 5 kb. It is important to consider other self-replicating genetic elements, such as satelliviruses, viroids and ribozymes.

     

    https://en.wikipedia.org/wiki/Smallest_organisms#Viruses

     

    This pandemic is understandably putting people on edge. Bad time to ask about how to make one yourself.

    Should really look into taking some of the free courses out there or buying a synthetic genetics/molecular biology kit if this is of interest.

    Link to a supplier as an example: https://amino.bio/

     

  10. 21 minutes ago, Strange said:

    That is a good point. At least part of the brain activity will be related to muscle activation.

    Form the paper:

    https://www.nature.com/articles/s41593-020-0608-8.epdf

    But as most of the same areas of the brain are activated even when people talk to themselves (without vocalising) it still has interesting possibilities.

    But this does mean that it is definitely going to be language specific, rather than "conceptual". Although perhaps other techniques (fMRI perhaps) could be used for that.

    Probably nanika/nanka = something/thingummy/whatever

    Right. See similar for people paralyzed or missing limbs using interfaces.

  11. Incorrect or lack of grounding can result in the chassis to build up a charge along with everything connected to it(including the strings). Button works via running a small current through your skin so touching it is likely completing a circuit for the charge to flow out while the phone is charging.

    I'd look at what type of plug the guitar has and possibly check that the wiring for the building is correct. Can be a safety risk. I recommend seeking someone local to ask about it when you are able.

  12. Still crude but they have found they can erase epigenetic damage.

    Mothers can gain cells that turn into  neurons from their children so adding to the brain is doable in theory. No idea how a larger scale version impact the mind however.

    Not sure keeping the mind the same is really even feasible in the longterm as new memories keep being added.

    We'll probably need to add defect free clone cells while limiting the numbers of defective cells in the body. In theory just need everything to stay the same. Complexity of the task is the daunting part.

     

  13. 2 hours ago, MigL said:

    Books like the Bible, which are meant for moral guidance ( not historical account ) usually reflect the morals of the times they were written.
    The Old Testament part is much more violent than the New Testament, wherein the only time Jesus gets mad is when he upsets the money-lender's tables in the temple, and, he asks his Father to forgive his crucifiers.
    This reflects the change in moral values that had occurred.

    I would expect a 'Modern Testament' ( if one were written ) to have much different messages/guidance, especially in relation to the treatment of women, homosexuality, certain 'sins', treatment of the poor, etc.

    Just to note, they were Money changers, engaged in the business of currency exchange.

     

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