Skip to content

Other Sciences

Discussion of science topics that don't fit under any other category.

  1. Started by Ali Lama,

    Hello, i wonder if someone could help with the wiring of this power board supply that takes in 240 volts and DC as output. As you can see it has (Ground, 230V, Common) as the three hook up and to the right of common is 4 hook up as the motor RPM. ( 1400, 1250, 1200, 1000) Of the four wires in my circuit panel in my house ( 2 black wires , 240 volts between them,wire A, and Wire B) 1 white wire, Wire C ( 120 volt with respect to the above two black wires.) 1 Bare copper wire , wire D ( no voltage between it and the above three wires). Which 3 of the above 4 wires ( A,B,C,D) should be plugged in to the three hook up on the board. See p…

    • 0

      Reputation Points

    • 1 reply
    • 1.2k views
    • 1 follower
  2. Hello Scientists. I am a "non" Scientist that has found myself in a frustrating situation. I am currently debating against vaccine denialists on a debate platform. It is a good little platform in that it is fun to debate things. The evil thing about this however, is that the debaters become conflicted in their interests. They begin arguing just about anything, in order to try and gain points from the voters. A good example of this is another person like myself that debates anti-vaxxers, mistakenly found herself debating against me, when she mistook me for an anti-vaxxer. So she unwittingly found herself debating "against" the importance of sanitation, and she di…

    • 0

      Reputation Points

    • 0 replies
    • 1.2k views
  3. Started by Zhu,

    i wonder if it possible to increase your memory,thinking speed etc.

    • 0

      Reputation Points

    • 5 replies
    • 1.4k views
    • 1 follower
  4. Started by ku,

    I have an optical mouse, not a ball mouse. My dad told me that optical mouses work best on white surfaces, but from usage I find that red surfaces work best. Does it matter what is the color of the surface on which you use your optical mouse?

    • 0

      Reputation Points

    • 18 replies
    • 78.5k views
    • 1 follower
  5. Started by Externet,

    Hi. If reasonable efforts to germinate seeds result in nothing, is it commonly due to the seeds being from a hybrid plant ? Should that be the reason ? Seeds with zero origin information : Not germinating when following instructions from expert/successful growers-

    • 0

      Reputation Points

    • 4 replies
    • 1.2k views
  6. Started by xdxd,

    so incubation period is the time from when you are first affected until you show the first signs and symptoms. this can vary from 2-14 days with the average of 5 days they found according to studies i was wondering 1) if during this incubation period, the virus is contagious 2) also if an asymptomatic carrier is only somebody who is in the incubation period (and maybe covalescent period- after you have the disease but you can still spread it?), *can people in stages such as the prodormal stage and the acute infection stage (the third stage after prodormal)

    • 0

      Reputation Points

    • 1 reply
    • 959 views
  7. Started by Bmpbmp1975,

    So I am trying to understand the following and was told not to hijack a thread One of the most important (and hardest) lessons to learn in science is that "we don't know" is a valid answer. And often it is the only, or the best, answer we have. All other answers have a level of uncertainty associated with them, so we rarely (if ever) know things for sure. so my question is does this apply to everything we think we know about science or physics? example: why we see about the Higgs bosom or Higgs field is it all just we don’t know and think we are right. how do we know our data if we have any is right? how do we know we are …

    • 0

      Reputation Points

    • 32 replies
    • 25.6k views
    • 2 followers
  8. Started by Enthalpy,

    Hello everyone and everybody! I suggest to use the reed and mouthpiece from an alto or bass clarinet on an alto or tenor saxophone with a special bocal. The sound of a woodwind depends strongly on them, here it might resemble a tárogató. The bass clarinet and tenor saxophone can already swap the reed of similar size, but only a clarinet mouthpiece has a facing curve to match the clarinet reed's profile. The designs differ much. Not only is the clarinet facing's curve steeper at the tip, the bore is also much smoother. The bocal fits in the saxophone's mouthpiece but surrounds the clarinet's one, demanding a new bocal design. Proper intonation needs to …

    • 0

      Reputation Points

    • 1 reply
    • 1.4k views
  9. Started by U-235,

    We all know david hahn did it. Why cant we? ( safely of course!) To be honest all im bothered about is creating a neutron gun ( one that produces neutrons effectively and efficiently) im not looking to build the reactor its self i just want the neutron gun for studying affects of radiation and neutrons on plant cells etc. I do know about the basic lead block method but is there anything better? Any help?

  10. Hello im new here and ive been into visual studio for some time now bout a year but im not that advanced and now im kinda out of ideas ^^

    • 0

      Reputation Points

    • 4 replies
    • 1.3k views
    • 1 follower
  11. Started by Enthalpy,

    Hello musicians and everyone! About woodwind instruments, I mentioned sometimes the reed susceptance. Here are explanations. This sketches a clarinet mouthpiece and reed. A double reed works similarly https://en.wikipedia.org/wiki/Double_reed The pressure oscillations of the air column move the flexible reed. When the pressure is lower, it closes the reed. When it's higher, the more open reed lets more breath pass. More throughput when the downstream pressure is bigger is the opposite of a usual obstacle or loss: it's a negative conductance that provides power to the oscillation of the air column. That's known. The reed must be closed when the dow…

    • 0

      Reputation Points

    • 4 replies
    • 4.2k views
  12. Started by newton97,

    What are the scopes of nano-science and nanotechnology?

  13. Your stated "So if you have a firm knowledge about the physiological basis of memory, can show why present ideas fail, and can show that your ideas fit very well in what we do know, please, present your ideas. But as said, why not publish them in a scientific journal?" I have worked on the physiological basis of memory for decades. Self published a book that deals with this topic extensively, but I don't know how to go about getting an article published in a scientific journal. Any suggestions are appreciated.

    • 0

      Reputation Points

    • 1 reply
    • 1.6k views
    • 1 follower
  14. 'Which is the most progressive Human Invention among the following ' What will you pick? https://pollsgo.com/poll?p=ohCWHqd

  15. So I'm sure I am making an error in my thinking somewhere, but in my head when I look at the technological progress of the last hundred years, much lesthe last thousand. It seems there is a gap. In what humans were doing between evolution of modern homosapians, and the foundation of the first civilizations. from wikipedia: homosapians evolved 400,000 and 250,000 bc with "behavioral modernity" being evident around 50,000 bc.(cave paintings, tool use, pottery, etc) Let us assume that the first human civilizations arose ~6,000 BC based on who you ask, and what you consider a "civilization" and ever since then, it appears technology, philosophy and scien…

    • 0

      Reputation Points

    • 11 replies
    • 2.5k views
    • 2 followers
  16. Yesterday (Thursday) morning around 10AM we had a partly cloudy sky in Alliance Ohio... and noticed the moon through some clouds. It appeared as a FULL moon. (supposed to be third quarter moon) Once we viewed the moon about 45 minutes later (in clear sky) it was no longer appearing to be a FULL moon! QUESTION: is it possible for light to reflect off the clouds and back to the moon to make the moon appear to be full when is should only be in third quarter phase? I am 67 years old, and never saw such a thing! Now I wish I had taken some pictures. -steve/Triberfan

  17. Pls write

    • 0

      Reputation Points

    • 2 replies
    • 1.1k views
    • 1 follower
  18. Started by jajrussel,

    not exactly sure where to post this Question I am confused at the results of an echocardiogram the initial reading was enough to convince that there was a possible blockage which there was. They installed stents. A month later they do another echo yet the reading is essentially the same? How does that work? The heart ejection fraction apparently presents the same in both readings so essentially the before and after Picture present the same Physically I know the new plumbing is working. I am fairly certain that the meds I am taking are not designed to create a simple physical feeling of wellness yet the EF in the second test matches the EF in the first test scie…

  19. Started by raifa,

    Liquid Nitrogen is dangerous if not handled properly. How to handle liquid nitrogen safely?

    • 0

      Reputation Points

    • 5 replies
    • 1.7k views
    • 1 follower
  20. Started by studiot,

    There are some who consider language a scientific subject. Certainly it can be very technical. You might enjoy "The Cambridge Encylopedia of Language." I believe you can get a pdf download for your E reader. Tenses: Some languages (Latin, German, ...) use changes to the endings of nouns to indicate different purposes. English does not do this very much. Most languages (German, French, Latin, Russian .. ) offer a much smaller set of changes to verbs than does English. Although there are only three basic tenses, Past Present and Future, English has many variations on each. These variations often confuse those learning English as a foreign langu…

    • 0

      Reputation Points

    • 25 replies
    • 78.3k views
    • 1 follower
  21. Started by fork,

    1. how do I detect the brain unique bio-electric frequency(the brain unique frequency, like DNA) 2. can that frequency be used to identify a specific brain or communicate/access/hack it if a signal modulated by the same frequency is sent to that brain? 3. can you change your brain unique bio-electric frequency? perhaps binaural beats change it?

    • 0

      Reputation Points

    • 2 replies
    • 1.2k views
    • 1 follower
  22. Started by fork,

    how can u measure/block/generate scalar waves?

    • 0

      Reputation Points

    • 2 replies
    • 1.4k views
  23. how do you block the EMF emissions coming out of the brain? can EMF emissions from the brain of person can be converted back to information inside his brain(thought, emotions or EEG/Evoked potentials) is patent US3951134A of Robert G. Malech ( https://patents.google.com/patent/US3951134A/en ) applicable in real life or is it just theory and no one ever implemented it? any way, do you see any weaknesses or limitation in his ideas? can the interference wave generated by the brain be blocked or interfered with ? how does the interference wave can remain strong and not weaken or how does the system deal with noise added to the w…

    • 0

      Reputation Points

    • 1 reply
    • 1.8k views
  24. Started by Externet,

    Hi. Seen publications and also videos on rooting cuttings using 'natural' and chemical compounds; but it is always done to few inches of cuttings. Anyone knows methods to promote rooting to a 5, 6, + feet long branch cutoff from a mature tree ? Or a link to such ? Ideally, for fruit trees, but, thinking also on timber harvest; respectable branches from downed trees are just left to rot. It would be interesting to gain years of growth by planting large branches...

    • 0

      Reputation Points

    • 3 replies
    • 1.2k views
  25. Started by ahmedhajji,

    ! Moderator Note link deleted. See rule 2.7

    • 0

      Reputation Points

    • 0 replies
    • 956 views

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.