Recent content by Goodies

  1. Goodies

    Fossils: 95% Plants, 1/4% Vertebrates - Fact or Fiction?

    Hello! I read this post on Facebook and I am curious as to its validity and accuracy: 95% of the fossil record is made of plants. Shellfish & coral make up most of the rest while vertebrates (fish, amphibians, reptiles, birds & mammals) make only 1/4 of 1% of the fossil record & only 1 of...
  2. Goodies

    Double-Slit Experiment Variations List

    To save me the time of typing a long list, here is the Wiki. I'm sure there will be some members here that will be able to contribute beyond this, though: http://en.wikipedia.org/wiki/Double-slit_experiment#Variations_of_the_experiment The double slit experiment is remarkable, indeed.
  3. Goodies

    W Bosons Elementary, but decay?

    Huge, huge thanks to ohwilleke for the complete, specific answer. Greatly appreciated. @jtbell I thought of bosons as almost virtual in comparison to quarks and other fundamental particles. This is probably due to my misunderstanding of how they can "carry forces", but like I said, I'm a novice...
  4. Goodies

    W Bosons Elementary, but decay?

    I'm a little confused. During Beta(-) radiation, a neutron becomes a proton due to a down quark becoming an up quark. When this happens, a W(-) boson is emitted which almost immediately decays into an electron and an electron antineutrino. A W(+) boson, similarly, is emitted when a down quark...
  5. Goodies

    Comparing DNA. What does it mean?

    Thank you very much for that simple, quick answer! To clarify, is it necessarily correct that 50% of the banana's protein-coding genes are also present in humans? Or is there another comparison mechanism that is used?
  6. Goodies

    Comparing DNA. What does it mean?

    When I see something like "Humans and Bananas share 50% the same DNA with one another!", I have several questions. First of all, a banana has 530 million base pairs whereas a human has approximately 3 billion. Even if we took the first 530 billion base pairs of the human genome, this would only...
  7. Goodies

    Why is entanglement necessary for understanding quantum mechanics?

    The error with your analogy is that, after they are entangled, if you replace one glove with its opposite without actually measuring it (for example, we have an automatic mold machine within each box that creates the opposite of the glove inside of one box and the original was destroyed), the...
  8. Goodies

    From Infinity to Here: Explaining Objects, Escape Velocity & More

    A phrase that I heard several times in the 2 years of high school AP physics I've completed (being a computer science major, I haven't taken any physics classes in college) was moving an object from "infinity to a point" and I'm a little confused as to what that means and how it works. Also...
  9. Goodies

    Could the brain run a program?

    Coming from a heavy computing background and little in hard sciences, I have a relatively good understanding of computer systems and a relatively mediocre understanding of how the brain works. However, I'll make an attempt. A computer program runs because there is an agreed-upon set of...
  10. Goodies

    Do photons bounce into each other?

    Not in the conventional sense. Having no mass, they do not collide as other particles would, especially if you look on the macroscopic level. They do interact, but remember that they are bosons, not fermions. They can, and do, occupy the same physical space as other photons.
Back
Top