TED Community » Petr Frish

About Me

http://www.iei.info/knol/pf/

Location:
Czech Republic, Highlands
Gender:
Male
Areas of expertise:
Physics & Engineering
Languages:
Czech, English
My website links:
Mankind on the Cross-Road, physics knols
Member Picture

TEDCRED 100+ TED Translator

More About Me

I'm passionate about

global future, science, grand challenge solutions

My TED Story

My favorite speaker so far is Hans Rosling
http://dotsub.com/view/ca899909-020b-4177-a875-bb34c385d37f

Comments

  • TEDCred score: +124.40 TEDCred reflects your contribution to the TED community.

  • A comment on Talk: John Lloyd inventories the invisible

    Oct 7 2012: This video reminds me of the first Romney's debate.
    It looks great and witty - until you start asking a question -- is this true?

    For example. Newton did say that it is remarkable that God (in any form) has no role
    in influencing motions of the planets. He saw His manifestation in biology.

    Video is manifestation and apotheosis of ignorance of science
  • A comment on Talk: Melinda Gates: Let's put birth control back on the agenda

    Jun 8 2012: So, I read this Catholic Response - without having an prior conviction.

    The problem I see with sermon is this: Some people are lucky that God is talking
    to them directly. Most people have some inkling about the Gods will and purpose
    for humans. For many, the men are saying what the God wants them to feel and do.
    Those men are often not wise, not good, not really appointed by God.
    Some are, but many are not. So, we must depend on our own feeling and experience
    to determine what is right. That's why we have the feeling and ability to reason.
    Catholic church says that they speak for God. Well, may be they do. But may be not.
  • +2

    A reply on Talk: Harvey Fineberg: Are we ready for neo-evolution?

    Jun 8 2012: Why not? Because there are no genes for racism and terror.
    Those are product of social interaction.
    There may be a way do select for less aggression - but those
    pacifist individuals are less likely to reproduce.
    Reproduction will become more of a zero-sum game, where winners will induce
    society at large to take care of their progeny.
    We may have more politicians and lawyers - am I not luvky to live in the present?
  • A comment on Conversation: What are appropriate organisms to use in educational demonstrations?

    May 7 2012: One does not have to use dissection in classroom unless it is necessary to convince the audience.
    Galvani demonstrated that neurons use electricity, and did not have to dissect any frog,
    (Frog was presumably killed in preparation of a dinner ?) His experiment was easier to see, without a microscope
    and playing music (just for cheap effect) appears sadistic.
  • A reply on Talk: Just how small is an atom?

    May 6 2012: I second that.
    However, issue here is not uk, which already joined modern word.
    The only three countries in the world, still stuck in the imperial units are
    : Liberia, Myanmar, and he United States.
    Yoy can blame it on Jefferson, who got the task select system of units, and then on Ron Reagan, who reversed ongoing metrification.
    http://www.designverb.com/2007/06/19/non-metric-countries/
  • A reply on Talk: Just how small is an atom?

    May 6 2012: It is an historical concept, like flogiston, obsolete in contemptorary physics
  • +3

    A comment on Talk: Just how small is an atom?

    May 6 2012: I find this video, possibly whole TED-Ed approach to science poor, in the quality of animation and in content and pedagogy for these reasons:
    Science is not collection of facts and factoids, particularly in facts one cannot verify. Here, student is asked to believe 'in atoms' and remember numbers, but has no trace of why these concepts, atoms, molecules, atd atd were made. Each has and interesting story (its history) and manifestation/application.
    For overview (after concepts are properly introduced) try 'Steps of ten" http://goo.gl/PNKkM
  • A reply on Talk: Kirk Sorensen: Thorium, an alternative nuclear fuel

    Mar 19 2012: Well - apart from bombs aspect - they just may not like being told what they may
    have and what not. They signed NPT - which gives them right to develop peaceful nuclear energy, with Uranium, Thorium etc etc. They are a sovereign country (after they got rid of their IS puppet dictator) and do not like the constant threats of being bombed and have their scientists assassinated,
    If you want to have a different treaty, one which allows Thorium but not Uranium, stop the sanctions, threats etc and offer incentives. You may surprised when they accept.
  • A reply on Talk: Kirk Sorensen: Thorium, an alternative nuclear fuel

    Mar 19 2012: Hello Dave,
    "the power is lost in the power transmission.." Is this a property of nuclear energy only?
    With SMR, power can be produced near the place where it is used. So, transmission losses are very small. AND * SUPERCONDUCTING TRANSMISSION LINES * will cut that even more. AND SMR see en.wikipedia.org/wiki/Small_modular_reactor
    It is delivered on a truck and generates energy where it is needed.
  • +1

    A comment on Talk: How simple ideas lead to scientific discoveries

    Mar 16 2012: The week point of Adam Savage's talk is : "At the same time" the stick at x,y had rays at the angle 7.5 ..."
    How did he knew it was 'the same time? Did he pick up the phone? This is pointed out below by Eliazar Parra Cardenas, but it can be understood simply, without animation, when we recall that length of day, angle of dun rays, depends on lattude: At North pole, rays never are perpendicular to the horizontal, at the equator then sometimes are. So, to determine your latitude, you measure shortest shadow of a stick (in a year).
    Once you know latitudes of any two spots on a same meridian and their distance, you know radius of a sphere.
    BTW This, messing up the logic of discovery for poor innocent students, is called 'solerism'. Solerians are aliens with advanced civilizations, who are slowing our technological progress, so that our ethical values can catch up with our technology. That way we may avoid destroying ourself by trying to create peace by bombing our 'imagined' enemies.
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