• Does the fact that nobody has come to visit us from the past or future mean that time travel is impossible?

    Best answer: I think that that is close to what Hawking says. People like Ronald Mallet though are actively studying time travel. I for one would think that if it is posible then they must not be able to interact with us in a physical way...otherwise we would have incountered them already. Maybe it would be more like you... show more
    Best answer: I think that that is close to what Hawking says. People like Ronald Mallet though are actively studying time travel. I for one would think that if it is posible then they must not be able to interact with us in a physical way...otherwise we would have incountered them already. Maybe it would be more like you being a type of ghost like representation in which you can see and hear things of the past as if you were there but you have no way to physcially interact with anything. I am sure people have thought of this already
    11 answers · 3 days ago
  • Who is smarter Einstein or Newton?

    10 answers · 1 day ago
  • Do mirrors work in outer space?

    9 answers · 2 days ago
  • Why do we lack a holistic understanding or development of physics?

    Best answer: The standard model only describes what happens----we do not know the WHY yet. There are SEVERAL different Physics theories that attempt to do so, but NONE explain every aspect of the model---some explain some and others explain others.---It is APPARENT that we STILL do not have enough pieces of the puzzle,... show more
    Best answer: The standard model only describes what happens----we do not know the WHY yet. There are SEVERAL different Physics theories that attempt to do so, but NONE explain every aspect of the model---some explain some and others explain others.---It is APPARENT that we STILL do not have enough pieces of the puzzle, evidence and experiment wise to come up with a holistic explanation.-------Currently, I favor the HUT (Holographic Universe Theory) physics explanation, as it has more potential to explain the most.--especially some of the stranger aspects that appear to be dependent on MIND and observation.
    7 answers · 1 day ago
  • What is the smallest known component of nature?

    Like something that would make an atom look like 100 million universes by comparison.
    Like something that would make an atom look like 100 million universes by comparison.
    13 answers · 4 days ago
  • Is time travel real?

    Has time travel already been invited or is it still just fiction?
    Has time travel already been invited or is it still just fiction?
    7 answers · 2 days ago
  • Is time travel possible?

    17 answers · 5 days ago
  • Is an electric scooter the future of transportation?

    Best answer: It may be in the countries where scooters are a primary form of transport. There is a large infrastructure in many countries that support petrol scooters and tuc tucs, this, it's hoped, will eventually go electric - but only if buying an electric scooter is as cheap or cheaper than a petrol one. In economies... show more
    Best answer: It may be in the countries where scooters are a primary form of transport. There is a large infrastructure in many countries that support petrol scooters and tuc tucs, this, it's hoped, will eventually go electric - but only if buying an electric scooter is as cheap or cheaper than a petrol one. In economies where scooters have a lifespan of tens of years it's going to take some time for electric vehicles to take over - but it should happen.

    Imagine if, whilst stuck in traffic, you were not wasting energy. If you see some of the jams in India it should be a no brainer to go electric.
    8 answers · 4 days ago
  • Can a cell phone produce enough energy to be used as a defibbrillator?

    Best answer: Possible. I can't find good info on the requirements, but I did find one reference that said 100-200 J Energy is the important factor, voltage can always be generated. Cell phone capacities are about 2 amp-hour, which is the same as 2 amp-hour x 3600s/h = 7000 amp-sec = 7000 J So the battery has the... show more
    Best answer: Possible. I can't find good info on the requirements, but I did find one reference that said 100-200 J

    Energy is the important factor, voltage can always be generated. Cell phone capacities are about 2 amp-hour, which is the same as
    2 amp-hour x 3600s/h = 7000 amp-sec = 7000 J

    So the battery has the capacity for quite a few shocks. But the battery energy is not available to the outside world, to my (limited) understanding, and you would need an external adaptor of some sort.
    5 answers · 2 days ago
  • Should I share my theories?

    I keep on coming up with different theories about physics and other things. I want to ask people what they think about it. I want to know if it is possible according to what they think about it but I don't want people stealing my ideas. Would it be best if I work alone and didn’t share it with anyone so they... show more
    I keep on coming up with different theories about physics and other things. I want to ask people what they think about it. I want to know if it is possible according to what they think about it but I don't want people stealing my ideas. Would it be best if I work alone and didn’t share it with anyone so they don’t steal my ideas? And If I did share my ideas should I do it in person and not on the internet?
    6 answers · 3 days ago
  • Physics problem help?

    1. What is the acceleration due to gravity of a feather? Is it smaller than that of an iron ball?
    1. What is the acceleration due to gravity of a feather? Is it smaller than that of an iron ball?
    6 answers · 3 days ago
  • What would happen if half of Earth fell apart?

    Would the rest be fine? Would it effect gravity?
    Would the rest be fine? Would it effect gravity?
    7 answers · 4 days ago