search results matching tag: MIT

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (214)     Sift Talk (4)     Blogs (18)     Comments (289)   

Richard Feynman on God

Jinx says...

>> ^shinyblurry:

It's better to know the answer than remain ignorant of it. To say you prefer uncertainty is to say you enjoy the freedom of imagining that the answer is something else, because you don't like it. We aren't uncertain about everything. We have to be certain of some things, like the fact that we exist. Do we say that those who believe they exist embrace this answer because they are afraid of not existing? Clearly, certainty is useful.
If you want say that theists embrace God because they don't want to die, you could also say that atheists reject God because they don't want Him to exist. Take these scientists, for example:
It is not that the methods and institutions of science somehow compel us to accept a material explanation of the phenomenal world, but, on the contrary, we are forced by our a priori adherence to material causes to create an apparatus of investigation and set of concepts that produce material explanations, no matter how counterintuitive, no matter how mystifying to the unitiated. Moreover, that materialism is absolute, for we cannot allow a Divine foot in the door.
Richard Lewontin, Harvard
New York Review of Books 1/9/97
No evidence would be sufficient to create a change in mind; that it is not a commitment to evidence, but a commitment to naturalism. ...Because there are no alternatives, we would almost have to accept natural selection as the explanation of life on this planet even if there were no evidence for it.
Steven Pinker MIT
How the mind works p.182
To say God couldn't touch this world because the Universe is so big is a false argument. The Universe may be huge to us, but to God it is very small. If God is omnipresent, He is everywhere at the same time. Size and distance mean nothing in that equation.
To say God created the Universe is not the end of inquiry, it is the beginning of true inquiry and true science. How could you understand the creation without understanding the Creator?

We're both ignorant. Only one of us knows it.

Richard Feynman on God

shinyblurry says...

It's better to know the answer than remain ignorant of it. To say you prefer uncertainty is to say you enjoy the freedom of imagining that the answer is something else, because you don't like it. We aren't uncertain about everything. We have to be certain of some things, like the fact that we exist. Do we say that those who believe they exist embrace this answer because they are afraid of not existing? Clearly, certainty is useful.

If you want say that theists embrace God because they don't want to die, you could also say that atheists reject God because they don't want Him to exist. Take these scientists, for example:

It is not that the methods and institutions of science somehow compel us to accept a material explanation of the phenomenal world, but, on the contrary, we are forced by our a priori adherence to material causes to create an apparatus of investigation and set of concepts that produce material explanations, no matter how counterintuitive, no matter how mystifying to the unitiated. Moreover, that materialism is absolute, for we cannot allow a Divine foot in the door.

Richard Lewontin, Harvard
New York Review of Books 1/9/97

No evidence would be sufficient to create a change in mind; that it is not a commitment to evidence, but a commitment to naturalism. ...Because there are no alternatives, we would almost have to accept natural selection as the explanation of life on this planet even if there were no evidence for it.

Steven Pinker MIT
How the mind works p.182

To say God couldn't touch this world because the Universe is so big is a false argument. The Universe may be huge to us, but to God it is very small. If God is omnipresent, He is everywhere at the same time. Size and distance mean nothing in that equation.

To say God created the Universe is not the end of inquiry, it is the beginning of true inquiry and true science. How could you understand the creation without understanding the Creator?

Eulerian Video Magnification - VERY COOL

rychan says...

>> ^bmacs27:

Bill Freeman is a really cool guy. I had a chance to have lunch with him, and we were talking about all the work he's doing. He's the kind of guy that just explores things because he thinks they're cool. Like this one project he had where he wanted to take a picture of earth from space using entirely earth based equipment using the reflection off of the moon. Absolutely ridiculous.


The project in question:
http://people.csail.mit.edu/hasinoff/diffuse/

Periodic Table Of Videos - Nuclear Radioactive Laboratory

GeeSussFreeK says...

The actinides are, generally, "safe" to handle, like those Uranium Oxide pellets. You are more likely to damage the pellet with your nasty human oils than the uranium will you...unless you eat the whole thing, but its chemical toxicity will do you more harm that its radioactive toxicity. Uranium oxide just isn't that radioactive, that is why none of the containers or work areas were shielded in this lab.



Now, if they were dealing with a "hot" substance, one that has hard gammas (like when you do MOX fuel recycling), you have to take even greater precautions because then the radioactive problems really do start to show their heads. Not only will it damage your cells faster than they can repair, but it can start to take out unshielded electronics. This is generally only true for fission products, and a few actinides like protactinium which is highly radioactive AND chemically toxic, and generally only man-made (normal occurrences are less than a few parts per trillion in the crust).



These complications are pretty good generalization to why normal LWRs are not the best way to do nuclear, they just generate far to much waste compared to alternatives. You burn less than 1% of the mined uranium in current reactor tech and fuel cycle choices. With a thorium cycle in a molten salt reactor, you can burn greater than 90%, pushing up to 99% or higher if you try real hard. This means you generate an order(s) of magnitude less waste, and that waste generally is safe after about 300 years (radiation is about the same as naturally occurring radiation). There are also other alternates that use uranium in a faster spectrum that perform better than current tech.



A second age of the atom is fast approaching. Unfortunately, those great pioneers which made this industry in the shadow of "the bomb" failed to realize the full potential of e=mc^2. If nuclear power was developed along side the Apollo instead of the Manhattan project, we might already be in that future, alas...it was not to be.



Radiation is fascinating though! I used to believe what I read in the fear news about any radiation leading to death..turns out that isn't so true after all. The planet is a far more radioactive place then you normally consider, and FAR more radioactive when our primordial ancestors evolved. In fact, there are many people living today in what are dubbed High Background Radiation Areas that seem to suffer no ill effect, and some suggest, have lower rates of cancer than other groups. More studies need to be done, but initial findings fly in the face of the notion of radiation I grew up with (that it all is bad and it all kills you!) Some have even suggested that the creator of the entire model used for evaluating radiation risk knowingly lied about it. The entire basis for today's evaluation of radiological risk is evaluated by Muller's findings as supported by the National Academy of Sciences’ of the time. And in fact, might just be based in fear instead of evidence.



Perhaps ancient man went through the same struggles as he tried to adopt fire, some impassioned move against the dangers of fire prevented some groups from using fire and advancing their way of life. Fire, though, allowed the groups that adopted it to improve their life dramatically. The energy released from a fission event is over a million times more energy rich than any energy tech we currently use, imagine what that could mean for mankind. Fusion is over 4 times that of fission (but much harder), and antimatter over 2000x that of fission (and MUCH MUCH harder). Yes, the age of the atom has only just begun, and who knows were man will be a result? Don't settle for solar dandruff, the power of the atom will reign supreme.

Futuristic Advances for May 2012 Summed Up in 37 Seconds

Good Chemistry - A 10th Grade Chemistry Project

Awesome tech-kit is awesome!

John K. Samson "Longitudinal Centre"

calvados says...

^References:

http://en.wikipedia.org/wiki/Royal_Canadian_Mint#Winnipeg_facility

http://suite101.com/article/mennonites-in-manitoba-a32031

http://www.gov.mb.ca/mit/floodinfo/floodoutlook/floodresponse.html

http://en.wikipedia.org/wiki/Interlake – (where the video was shot) "As of 1999, the average family income was $32,570, and the unemployment rate was 10.60%. Twenty-two per cent of the riding's residents are listed as low-income. Almost 25% of the riding's residents have less than a Grade 9 education."

No Needles - (Advanced) Jet-Injected Drugs

siftbot says...

Tags for this video have been changed from 'needles, injection, shots, dr, skin, pressure, mit, hypospray' to 'needles, injection, shots, dr, skin, pressure, mit, hypospray, star trek' - edited by messenger

Grimm (Member Profile)

volumptuous (Member Profile)

Fantomas (Member Profile)

MIT Team Create Ketchup Bottle That Pours Like Water

MIT Team Create Ketchup Bottle That Pours Like Water

MIT Team Create Ketchup Bottle That Pours Like Water

Payback says...

Sees video title: MIT Team Create Ketchup Bottle That Pours Like Milk

Watches video.

Thinks: "If that's how your milk pours out of a bottle, you MIGHT want to check the expiry date."



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