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Teachers Union: Computers Can Negatively Impact Children's Ability To Learn

Geirzinho Re:BASICally (310 comments)

Around 400BC Socrates quipped:
Our youth now love luxury. They have bad manners, contempt for authority; they show disrespect for their elders and love chatter in place of exercise; they no longer rise when elders enter the room; they contradict their parents, chatter before company; gobble up their food and tyrannize their teachers.

And I think we have found some cuneiform tablets from Sumer with exasperated teacher comments way older than that:)

about 6 months ago

Letter to "Extended Family" Assures That NSA Will "Weather This Storm"

Geirzinho Re:Extended Family? (286 comments)

USS Pueblo?
USS Liberty?
Vietnam listening posts?
And many other places they have gathered intelligence...

about a year ago

"Synthetic Tracking" Makes It Possible to Find Millions of Near Earth Asteroids

Geirzinho Re:Is it just me? (101 comments)

Actually, rereading the abstract, it seems that GP was spot on:P

about a year ago

"Synthetic Tracking" Makes It Possible to Find Millions of Near Earth Asteroids

Geirzinho Re:Is it just me? (101 comments)

Interesting idea, I wonder if that's ever been tried? I guess the feasibility depends on what the angular motions of these objects are.

In this case though, they "simply" take a lot of short-exposure images of the same region and add them together. From the abstract:

The technique relies on a combined use of a novel data processing approach and a new generation of high-speed cameras which allow taking short exposures of moving objects at high frame rates, effectively ``freezing'' their motion. Although the signal to noise ratio (SNR) of a single short exposure is insufficient to detect the dim object in one frame, by shifting successive frames relative to each other and then co-adding the shifted frames in post-processing, we synthetically create a long-exposure image as if the telescope were tracking the object with a significantly higher SNR.

about a year ago

MIT Research: Encryption Less Secure Than We Thought

Geirzinho Known or chosen plaintext (157 comments)

How is this in principle different from the known plaintext attacks (https://en.wikipedia.org/wiki/Known-plaintext_attack)?

These assume that the attacker knows both the encrypted version of the text and the original it was based on, and tries to glean information from their correlation.

Modern ciphers are made resistant even to chosen plaintext attacks, where the analyst knows the key and can tailor-make pairs of plain- and ciphertext.

about a year ago

Discovering NSA Code Names Via LinkedIn

Geirzinho Re:bULL... (201 comments)

On the other hand ANCHORY is an actual NSA system (http://www.fas.org/irp/program/disseminate/anchory.htm)

I guess they use both COTS and in-house developed software at NSA too...

about a year ago

NOAA: Arctic Likely Free Of Summer Ice By 2050 — Possibly Much Sooner

Geirzinho Re:Or not... (335 comments)

They're claiming it will be ice free _by_ 2050, not spontaneously in that year! You can verify their claim every summer up to that year.

If their model says the trend is linear and they are right, half the ice is gone in 2032 (they'll probably have some feedback, so check their trend prediction).

about a year and a half ago

After Weeks of Trying, UK Cryptographers Fail To Crack WWII Code

Geirzinho Re:No surprise there (263 comments)

Not true. The probability that the next letter in the OTP is (say) an A is always 1/26 when you have no prior knowledge about how the cipher clerk selected it. This is the optimal case, and any changes in how it is selected will only reduce the entropy of the pad.

*or did I just hear a whoosh over my head?*

about 2 years ago

IEEE Standards For Voting Machines

Geirzinho Re:There is a more immediate problem (221 comments)

But voters could see this (for all good it did them). With a closed computer system recognizing fraud is much more difficult.

about 2 years ago

"Badass" Bug Infects and Kills Borderlands 2 Characters

Geirzinho Re:Wait... (189 comments)

The corrupted blood incident is actually better described as emergent behavior in a complex system.

The Blizzard developers didn't make a mistake, they just didn't think about all the consequences that debuff would cause in a world-like environment. And researchers had a field day studying the CB spread of the epidemic:)

about 2 years ago

Which Fading Smartphone Company Is More Valuable To Microsoft, RIM Or Nokia?

Geirzinho Microsoft wouldn't by the whole of Nokia (222 comments)

Nokia is a 150-year-old storied company. The Finns may not be too keen to let it go to an American firm.

Nokia may be 150 years old, but Microsoft would only want their technological branch. That branch is much younger. The question is who gets the brand name, though.

more than 2 years ago

Comet-Sun Impact Caught On Video

Geirzinho Re:Not quite as advertised (61 comments)

As a skydiver, I can testify to the fact that you can "impact" a gas:)

more than 3 years ago

Supercomputers Crack Sixty-Trillionth Binary Digit

Geirzinho Hmm, logged in or not? (1 comments)

This discussion was created for logged-in users only.

Why am I not allowed to view or post in this article?

more than 3 years ago

Large Hadron Collider is a Time Machine?

Geirzinho Another paradox (332 comments)

About sending information back in time...

To paraphrase Fermi,
If this theory is true, why haven't we done so already?

more than 3 years ago

Ask Slashdot: Worst Computer Scene In TV or Movies?

Geirzinho Re:Actually... (1200 comments)

The pilots would have to ignore the PAPI glide slope indicators too. These are rows of light which shine all red when you're coming in too low, a clear warning that you should go around.

And that's even if you ignore the altimeter, 200 meters should be about 20hPa too low on the (in that weather already low) QNH?

more than 3 years ago

Scientists Propose One-Way Trips To Mars

Geirzinho Re:Little difference? (839 comments)

And the settlers marsupials?


about 4 years ago

Frustrated Reporter Quits After Slow News Day

Geirzinho Re:Not as clear cut as that (178 comments)

I think these numbers are from the joint union agreement (fellesavtalen). Your rights as granted by law are a little worse, eg. 40 hour weeks and 140% overtime. Still, very good by international standards.

more than 4 years ago


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