search results matching tag: physicist

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (195)     Sift Talk (11)     Blogs (14)     Comments (447)   

Conservative Christian mom attempts to disprove evolution

shinyblurry says...

Hey robbersdog49, thanks for the level headed reply. I'll address your comments in a few pieces here:

The origin of life and Darwinian evolution are two entirely different things. Regardless of how you believe the first life came about we do know from the fossil record and evidence about the way the environment and climate changed on earth in those early millennia that the first life was simple single cell organisms.

In my study of the evidence from the fossil record, I found more evidence that contradicted the assertions of Darwinian evolution than confirmed it. The Cambrian explosion for example, where basically every type of animal body plan comes into existence at around the same time, contradicts the idea that these things happened gradually over long periods of time. In fact, a new theory was invented called "punctuated equilibrium" which says that the reason we aren't finding the transitional fossils is that the changes happen too quickly to be found in the fossil record. Instead of a theory based on the evidence, we have a theory to explain away the lack of evidence.

Evolution is the process which turned these very simple life forms into the complex forms you see all around you today. It's an ongoing process and the evidence for evolution is overwhelming.

The evidence for micro evolution is overwhelming. The reason we have hundreds of different breeds of dogs is because of micro evolution. Darwin discovered this and all the credit should go to him, but where the leap of faith took place was when he supposed that because we see changes within species, that therefore all life evolved from a common ancestor. This claim is not substantiated scientifically. You cannot see macro evolution taking place anywhere in the world, and you cannot find the transitional fossils to say it ever took place. You cannot test it in a laboratory, it is a historical claim based on weak circumstantial evidence.

Science doesn't know exactly how life first came about. It doesn't claim to. We know that it did because we're here, but how? Not sure. But that's not a problem, science doesn't claim to know everything. Science is a process we use to find out about the world around us. It's not a book with all the answers.

Science is all about what we don't know. It's a process of discovery, and you can't discover something you already know. Religious people like to show any gap in the knowledge of scientists as showing they are frauds, or know nothing and that this means their own views must be true. That's just a stupid logical fallacy. Just because no one else has the answer doesn't mean you can just claim your version must be correct.

Science not being able to tell us how life started has no effect on the validity of the statement 'God did it'.


The God of the gaps fallacy is simply a red herring in these conversations. I don't purport to say that because science can't explain something, that means God did it. Science is all about the principle of parsimony; what theory has the best explanatory power. I purport to say that the idea of a Creator has better explanatory power for what we see than the current scientific theories for origins, not because of what science cannot explain, but for what science has explained. I think the evidence we do understand, in physics, biology, cosmology and information theory overwhelmingly points to design for many good reasons that have nothing to do with the God of the gaps fallacy.

There is also it seems a point of pride for those who think the best position is to say "I don't know", and accusing anyone who thinks they do know as being wrong headed, arrogant, or whatever. It's a very curious position to take because there are plenty of things we can know. No one is going to take the position that if you say the answer to 2 + 2 is 4 and you deny that any other answer is valid, you are arrogant or using fallacious reasoning. Yet, it is arrogrant and fallacious to those who think that science is the sole arbitor of truth when someone who believes in God points to a Creator as the best explanation. They think that because they believe no one else could know the answer except through scientific discovery. You have to realize that is a faith based claim and not an evidence based claim. You think that way when you place your faith in science as what is going to give you the correct answers about how and why you are here. I like these quotes for Robert Jastrow, who was an Astronomer and physicist:

"For the scientist who has lived by his faith in the power of reason, the story ends like a bad dream. He has scaled the mountain of ignorance; he is about to conquer the highest peak; as he pulls himself over the final rock, he is greeted by a band of theologians who have been sitting there for centuries."

"Scientists have no proof that life was not the result of an act of creation, but they are driven by the nature of their profession to seek explanations for the origin of life that lie within the boundaries of natural law."

As for the age of the earth, there's a huge amount of evidence which says it's about 4.54 ± 0.05 billion years old. That's plenty of time for evolution to take us from simple single cell life to the complex animals we've become today.

Have you ever studied the scientific proofs for both sides? There are some "clocks" which point that way, and there are other clocks that point the other way. The clocks that point to the old Earth have many flaws, and there are simply more evidences that point to a young Earth. That video I provided shows the evidences I am talking about.

robbersdog49 said:

The origin of life and Darwinian evolution are two entirely different things.

ChaosEngine (Member Profile)

enoch says...

well done on that physicists video.
political arguments dressed up as science is such a cynical and disrespectful approach to such a complicated,and possible species ending,situation.

the movie "they live" was a documentary.

i promoted the video if only to further the discussion and expose a political argument that has NOTHING to do with the science,but rather EVERYTHING to do with the singular,monied interest of powerful influential players who care nothing but their own self-interest.

and at what cost?
possibly everything and everybody.

this physicist sold his soul for money.
he is a whore.
no..worse than a whore,because at least a whore has more integrity.

Princeton Prof Comes to Alarmin Conclusion on Climate Change

ShakaUVM (Member Profile)

ShakaUVM says...

Technically correct is the best kind of correct.

The trouble with teaching people that the bowling ball and feather will hit at, quoting the physicist in this clip, "exactly the same time", is that (relativity issues aside making the statement a joke anyway) it leads people to have a faulty understanding of how gravity actually works.

It's fine to teach that bowling balls and feathers will hit at *approximately* the same time, due to one mass in the equation being much higher than the other (allowing us to approximate it out), but it seems to never be taught this way. So these students end up with all sorts of wrong ideas about gravity when they get to me to work on n-body solvers.

It's the same problem, for example, as teaching elementary school kids that 5 divided by 0 is 0. It might make that teacher's life a little easier, but causes problems downstream.

newtboy said:

Now I'm starting to think you just want to argue. If you're smart enough to make those technical assertions, you're smart enough to know that's not what the experiment was about, and that you're just adding data to confuse the lesson.
The experiment is about the effect of gravity on the moving objects under 2 conditions, and how their mass means nothing when determining THEIR accelerations/speeds in a vacuum. Period.
You want to introduce other, completely unobservable forces and movements to say 'nope'. Technically, you may be correct, but you must completely ignore the purpose and parameters of the experiment and assume inobservably small movements to make your point...a point that does not actually change the experimental findings or the lesson, but does confuse it thoroughly.

Neil deGrasse Tyson on genetically modified food

dannym3141 says...

@nock

If we accept that he is a very proficient physicist, then he is certainly able to understanding the scientific method - the attention to detail, the terms, the maths, the statistics.

A proficient physicist can spend weeks analysing a research paper written about their own particular field, needing hundreds of re-readings to understand everything.

I would say, on balance, NdT is very likely to be very capable of understanding of the biology with access to scientific research resources and reference materials. As for the chemistry - a lot of physics (especially the astro) IS chemistry; big bang nucleosynthesis, star nucleosynthesis, nuclear reactions, radioactive decay... Physicists joke that chemistry is just a subset of physics. And biology comes down to chemistry!

I think you're not giving him anywhere near the respect he deserves on this matter. He is not just a physicist - he's a scientist.

(Sorry if i'm a bit like a dog with a bone, i often think that real, well rounded scientific understanding isn't given the respect it deserves - no bias honest! But i would say that NdT could very easily conduct biological research if he found a subject that interested him in that area. Many of the tools are probably the same.)

Neil deGrasse Tyson on genetically modified food

dingens says...

I don't know why somebody would ask a physicist about biology, agriculture and economy. And I don't know why he would choose to answer.

The Amazing Randi busts "Magnet Man"

J-Rothmann says...

German Channel ProSieben - Galileo featured Miroslaw Magola who promotes Telekinesis. Real Magneto, X- Men, Miroslaw Magola's telekinesis is achieved by projecting a portion of his consciousness in the object that he want to move.

Theoretical physicist Michio Kaku : THE FUTURE OF THE MIND: The scientific quest to understand, enhance, and empower the mind.” And his quest to promote: “Telepathy. Telekinesis. Mind reading. Photographing a dream. Uploading memories. Mentally controlled robots.”

Kaku claims all of “these feats” have already been achieved. “These feats, once considered science fiction, have now been achieved in the laboratory, as documented in THE FUTURE OF THE MIND,” Kaku’s website declares.

Kaku notes that his “book goes even further, analyzing when one day we might have a complete map of the brain, or a back up Brain 2.0, which may allow scientists to send consciousness throughout the universe.” Miroslaw Magola alias "Magnetic Man," ( Magnet Mann ) known form Stan Lee's Superhumans - MInd Force who allegedly exhibits telekinetic powers aired on History and Discovery Channel born in Poland and now living in Germany. He claims he can lift objects off the floor, transport them through the air and force them to stick to his body - all using the power of his mind .

He was investigated by Prof. Dr. Dr. Ruhenstroth-­Bauer and Dr. Friedbert Karger of the Max Planck Institute and Dr. David Lewis (psychologist), a neurophysiologist at MindLab, one of the United Kingdom's leading neuro-research centers and Dr. Konstantin Korotkov, professor of Physics at St. Petersburg State Technical University in Russia and Alexander Imich from USA. More [url redacted]

Neil deGrasse Tyson schooling ignorant climate fools

Buttle says...

You can demonstrate the effect of carbon dioxide on climate as easily as dropping a ball from your hand? People know that balls will drop because the see it for themselves, not because a former physicist and his dog say so.

In actual fact, the earth has not warmed in nearly 20 years, and the climate models do not help to explain this. They are useless for explaining or predicting changes on the scale of decades, and it's crazy to expect them to somehow predict changes much further in the future.

Warmism, from the start, has been based on obfuscation, concealment of data, dodgy statistics, and overcomplicated computer models that add very little to insight into the real physical phenomena.

Remember the hockey stick? That went the way of Carl Sagan's nuclear winter, which ought to provide a cautionary tale for Neil deGrasse Tyson.

Your child's future will have many problems, one of them being depletion of the fossil fuel supplies that we have come to rely upon for sustenance. Climate will change, as it always has, and some of that change will be caused by CO2.
Climate science could be helpful; it's a pity that it has been distorted into a completely political exercise, and a shame for science generally, which stands to lose a great deal of public trust.

robbersdog49 said:

I think the parallel with gravity is that although the exact cause is debatable, the effect isn't.

If gravity were to be discussed like climate change is then we'd have people arguing about whether or not a ball will fall downwards if dropped, not about whether a graviton is the cause. The right would be arguing that the 'scientists' only observe the ball going down because they're throwing it down.

We're living under a cliff and rocks are starting to fall down on us with alarming regularity, far more often than they used to. We should be building shelters to hide from them or moving away, or strengthening the cliff to stop more rocks from falling but we aren't because we don't know if the graviton exists or not.

I just don't understand the controversy. The earth is warming, and it's going to have a catastrophic effect on a lot of the life on the planet, including us. We could potentially do something about it, or at the very least try to do something about it. But instead there's all this fighting and bitterness.

I'd resign myself to the fact that the human race are a bunch of fucking idiots and we'll get what we deserve but six months ago my wife gave birth to our first child. Every time I look at him I think about the world we're going to leave for him and his kids and realise what a bunch of arseholes we're being. I would love to know what catastrophic things the deniers think will happen if we do try to do something about climate change. What could be worse?

Will Feynman get an element?

siftbot says...

Tags for this video have been changed from 'element 118, richard feynman, physicist, honors, chemistry, physics' to 'element 117, richard feynman, physicist, honors, chemistry, physics' - edited by RhesusMonk

Last Week Tonight with John Oliver: Climate Change Debate

Trancecoach says...

To be sure, it does not take "studies" and "experts" to "prove" that smog turns healthy breathable air into unhealthy unbreathable air.

But, again, the consensus among proponents of man-made global warming pretty much all agree that the cause is greenhouse gases. And the consensus is also that cattle accounts for the main source of greenhouse gases. I honestly don't see how anyone concerned with man-made global warming can ignore this and, therefore, not be vegetarian (i.e., be congruent in their behaviors and beliefs).

I recommend reading "Hot Talk, Cold Science", endorsed by respected physicist the late Frederick Seitz, William Harper professor of Physics at Princeton, Richard Lindzen, meteorologist at MIT, written by physicist Fred Singer.

If you want to know where Prof. Singer is coming from, read this (and skeptics are not "deniers"- that's just a slur).

But before you freak out, let me restate, it matters not; clean air is good either way; do things that contribute to clean air (like end the state -- > good luck with that!).

(Better to read and have these discussions with actual working climate scientists than to bother with Internet pundits either way.)

There is also "consensus" as to the three types of "deniers." If anyone calls me a "denier," I'd be curious as to which of the three types of "deniers" you think I belong to (as indicated in the Singer article linked above). And you can then give me your scientific explanations as to why my stance is not valid.

This is something worth keeping in mind (from Singer):

"I have concluded that we can accomplish very little with convinced warmistas and probably even less with true deniers. So we just make our measurements, perfect our theories, publish our work, and hope that in time the truth will out."

The warmistas matter as much as the deniers. And the bottomline remains: what are you going to do about it anyway? As has been shown over and over, your "votes" don't count for much (or anything at all). So, what are you going to do about this (other than fume and get your panties in a twist on videosift)? The same is true with the "deniers." And the skeptics (i.e., true scientists).

Science also doesn't work by consensus. No real scientist will say otherwise. You either prove/falsify some hypothesis or you don't. You don't determine the truth in science by "consensus." Scientific consensus, as has been said, is itself unscientific.

There is no "consensus" on the acceleration speed of falling objects. There is no "consensus" on whether the Earth is orbiting the sun. There is no "consensus" on water being made up of H2O. These you can measure and find out for yourself. (In fact, Galileo had less than 5% "consensus" on whether the Earth orbits the sun at the time of his experiments. Facts matter. "Consensus?" Not so much.)

But,

“If the science were as certain as climate activists pretend, then there would be precisely one climate model, and it would be in agreement with measured data. As it happens, climate modelers have constructed literally dozens of climate models. What they all have in common is a failure to represent reality, and a failure to agree with the other models. As the models have increasingly diverged from the data, the climate clique have nevertheless grown increasingly confident—from cocky in 2001 (66% certainty in IPCC’s Third Assessment Report) to downright arrogant in 2013 (95% certainty in the Fifth Assessment Report).”

Still, this does not in any way equate "denial" of man-made global warming or whatever other "climate change." That is simply an unfounded conflation made up by the propagandists which so many here take on as gospel.

And it still does not let anyone "off the hook" about actually doing something that matters if you care about it so much.

Let me know if anyone finds any "errors" in the science of the NGIPCC articles and studies that I posted above.

Cool experiments with Trimethylaluminum

AeroMechanical says...

It's probably not as economical and convenient as white phosphorous.

My father was a physicist, and he told me a story (mind you, a great deal of his stories were apocryphal and he died before they could be sorted out--which is why I feel justified in claiming my great grandmother was Irish royalty and my great grandfather was an armless gypsy horse acrobat... but I digress). Anyways, he claimed that for a time in Spain there was a company marketing cigarette lighters that used white phosphorous so that you could merely flip the lid open, exposing a small amount to the air igniting it, and very suavely light a ladies cigarette for her. Unfortunately, sometimes the seals would fail while in a man's trouser pocket, which is where the slang "willy peter" comes from.

Huckabee is Not a Homophobe, but...

newtboy says...

Ahhhh...I see now. You misunderstood your own quote...AND it's wrong...I'm now wondering where you got it from.

Quantum theory is not the theoretical basis of modern physics, it is a mostly theoretical part of sub-atomic physics, and could be called a 'base' for understanding much of that subject, but is not a catch all explanation for even all sub atomic physics, certainly not physics in total.
Modern physics explains the nature and behaviors of matter and energy on the atomic and sub-atomic level, not quantum theory. Quantum theory does NOT explain atomic physics at all, it's only about sub atomic physics. Quantum theory is a sub set of physics, not the other way around as you implied.
Sub atomic physics and 'atomic' physics don't seem to jibe with each other... yet, and the rules of one do not work in the other. It's all counter intuitive and difficult for scientists to understand, the lay person has a snowball's chance in hell of understanding what we even think we know, even less if they get bad info to start with.
That means your understanding is completely wrong. Even sub atomic particles can't really be in two places at once in the way you understand it...it's all insanely difficult math that suggest something that, in lay man's terms, is close to being in two places, but is not actually that, because it's also in neither place (and in some equations, everywhere at once, and nowhere)! It's impossible to state fully in normal English, it's math...and screwy math at that.
Matter simply can't really be in 2 places at once, not even sub atomic parts of it. Certainly not a person. Some experiments may SEEM to show that certain particles/waves may be, but they aren't really...it's wierd. No actual quantum physics scientist has made such an insane claim (that YOU are in 2 places at once) that I know of....it's just plain wrong and displays a complete lack of understanding of the basic principles involved and the difference between sub atomic and non-sub atomic. If someone said that, you can be certain they were either not a physicist, or were trying to over simplify and explain through a poor, un-explained analogy as poor teachers have a tendency to do when explaining difficult subjects to those with no grasp of the basics.
And I don't own any scientists, gawd believing or no. ;-)
...and none of that has a thing to do with evolution beyond being the basic 'rules' for matter.
...and none of that has a thing to do with moral superiority or morality at all.
...and it all has nothing to do with religion based homophobia/bigotry....the topic of this video....so now that another thread has been hijacked, I'm taking this thread to Cuba!

bobknight33 said:

I say Yes Quantum physics is part of evolution "Quantum theory is the theoretical basis of modern physics that explains the nature and behavior of matter and energy on the atomic and subatomic level." But from that understanding it is theorized that you are in multiple places at once. That point of thought has been well stated by your non god believing scientist.

In theory you are in many places at once. So what part of evolution does that serve? From an evolution point of view quantum physics should not be needed and should not exist.

Huckabee is Not a Homophobe, but...

bobknight33 says...

I don't care to get into a pissing contest with you but there are things that just don't fit the evolutionary thought.

If evolution is the order of the day why would we need to have multiple dimensions. Physicists theorize that there are about 10 or 12.

Where does Quantum physic fit into evolution?

We all believe in the big bang theory but where did all the matter come from? What evolutionary reasoning explains this?

There are stuff out there that just make you stop and think otherwise.

VoodooV said:

All evidence to the contrary.

And I know you'll back up your claims with some sort of objective evidence, won't you.

<sarcasm>of course you will</sarcasm>

"Father of Inflation" Professor SURPRISED w/ New Discovery

rich_magnet says...

"It's five sigma at point two". Now I know how to impress physicist chicks.

In actuality, I'm reeling at this discovery. Finally, solid evidence of gravitational waves and basically staring at the Big Bang. Astrophysics is advancing so fast these days.

Picking up a Hammer on the Moon

Chairman_woo says...

Actually I'm about as English as they come but crucially I spent my advanced academic career studying Philosophy and rhetoric (lamentably only to Hons. due to laziness) and consequently have an ingrained habit of arguing around a problem rather than relying on established parameters (not always entirely helpful when discussing more day to day matters as I'm sure you've by now gathered but it is essential to working with advanced epistemological problems and so serves me well none the less). I'm also prone to poor punctuation and odd patterns of grammar when I'm not going back over everything I write with a fine tooth comb which has likely not helped. (A consequence of learning to describe tangent after tangent when trying to thoroughly encapsulate some conceptual problems with language alone)

That said, while I may have gone around the houses so to speak I think my conclusion is entirely compatible with what I now understand your own to be.

I didn't want to describe my original counter-point by simply working with the idea that weight is lower on the moon relative to the earth (though I did not try to refute this either) because that would not illustrate why a 2-300kg man in a space suit still takes some shifting (relatively speaking) even if there were no gravity at all. (Would have been faster to just crunch some numbers but that's not what I specialise in)

Sure you could move anything with any force in 0G (which I do understand is technically relative as every object in the universe with mass exerts gravitational forces proportionately (and inversely proportional to the distance between)) but the resulting velocity is directly proportional to mass vs force applied. Weight here then, can be seen as another competing force in the equation rather than the whole thing which it can be convenient to treat it as for a simple calculation (which is what I think you are doing).

To put that another way I was applying a different/deeper linguistic/descriptive paradigm to the same objective facts because that's what we philosophers do. Single paradigm approaches to any subject have a dangerous habit of making one believe one possess such a thing as truly objective facts rather than interpretations only (which are all that truly exist).


In other terms weight alone isn't the whole story (as I assume you well know). Overcoming inertia due to mass scales up all by itself, then gravity comes along and complicates matters. This is why rocket scientists measure potential thrust in DeltaV rather than Watts, Joules etc. right? The mass of the object dictates how much velocity a given input/output of energy would equal.

Gravity and thus the force in newtons it induces (weight) in these terms is an additional force which depending upon the direction in which it is acting multiplies the required DeltaV to achieve the same effect. Moreover when concerning a force of inconstant nature (such as pushing up/jumping or a brief burn of an engine) brings duration into play also. (the foundations of why rocket science gets its fearsome reputation for complexity in its calculations)


Man on the moon lies on the ground and pushes off to try and stand back up.
This push must impart enough DeltaV to his body to produce a sufficient velocity and duration to travel the 2 meters or so needed to get upright so he can then balance the downward gravitational force with his legs&back and successfully convert the chemical/kinetic energy from his arms into potential energy as weight (the energy he uses to stand up is the same energy that would drag him down again right?).

One could practically speaking reduce this to a simple calculation of weight and thrust if all one wanted was a number. Weight would be the only number we need here as it incorporates the mass in it's own calculation (weight = mass x gravity)

But where's the fun in that? My way let's one go round all the houses see how the other bits of the paradigm that support this basic isolated equation function and inter-relate.

Plus (and probably more accurately) I've been playing loads of Kerbal Space Programme lately and have ended up conditioning myself to think in terms of rocketry and thus massively overcomplicated everything here for basically my own amusement/fascination.


Basically few things are more verbose and self indulgent than a bored Philosopher, sorry .


Re: Your challenge. (And I'm just guessing here) something to do with your leg muscles not being able to deliver the energy fast/efficiently enough? (as your feet would leave the ground faster/at a lower level of force?). This is the only thing I can think of as it's easier to push away from things underwater and it certainly looks difficult to push away hard from things when people are floating in 0g.

So lower resistance from gravity = less force to push against the floor with?

Warm? Even in the Ballpark? (Regardless I'm really pleased to discover you weren't the nut I originally thought you to be! (though I imagine you now have some idea what a nut I am))


If I got any of that wrong I'd be happy for you to explain to me why and where (assuming you can keep up with my slightly mad approach to syntax in the 1st place). I'm an armchair physicist (not that I haven't studied it in my time but I'm far from PHD) I'm always happy to learn and improve.

MichaelL said:

I have a degree in physics. I'm guessing that English is maybe a 2nd language for you? Your explanation of mass and weight is a little confusing. With regards to our astronaut on the moon, it's the difference in weight that matters. He should be able to (approximately) lift six times the weight he could on earth.
(Sidebar: It's often been said that Olympics on the moon would be fantastic because a man who could high-jump 7 feet high on earth would be able to high-jump 42 feet high (7x6) on the moon. In fact, he would only be able to jump about half that. Do you know why? I'll leave that with you as a challenge.)



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon