Median is the same as average, for any symmetric distribution. The GP noted, correctly, that IQ is pretty normally distributed.
Technically, "average" is a bit poorly defined. In common use we normally intend the word to be synonymous with the mean, but in mathematical use it can mean any measure of central tendency, including the median.
Torpedo nets were used a lot to protect ships in port, but not so much when they're moving. It's tough to spread out some kind of net in a fast moving stream of water. Plus you'd presumably fire a few torpedoes at anything you really wanted to sink, so now your net has to survive intact around a moving ship while getting hit with explosives.
Tumblehome lowers centre of mass by making upper decks smaller (and therefore lighter). It was widely used in wooden sailing ships for just that purpose, improving stability. The French ship (only one was sold to Russia, the Russians built the others) you mentioned was an awkward transitional phase to modern ships where we insist on putting all the heavy stuff on top, regardless of how big the deck is. In that situation the ship is inherently unstable and tumblehome doesn't help much. So you replace tumblehome with flare, raising the centre of mass but gaining rollover resistance through a combination of spreading out the weight on the upper decks and buoyancy characteristics. Although, if the ship does capsize, it's often just as stable upside down.
It's pretty easy to tell that Moissanite isn't diamond. Just shine a white light on it. The difference in refraction is easy to see by eye: the Moissanite is much more sparkly.
The US constitution was written to head up a common law system, inherited from the British. Under common law, there are customary rights, responsibilities and laws that are traditionally assumed, but are not necessarily written down somewhere. To confuse things, philosophers at the time were debating "natural" rights which were somehow inherent in all humans. Well, except the black ones, brown ones, female ones, disabled ones, and maybe anybody who didn't own land.
It's not true. There are lots of published negative results. They're even fairly easy to publish, because they're so novel. What doesn't get published, I think correctly, are inconclusive results.
A negative result is "such and such hypothesis/theory/previous result predicts that we should see a signal of this magnitude. Our experiment measures the signal to be X within a margin of error Y. This result is has a very low probability P if such and such hypothesis is true."
An inconclusive result is "my p-value isn't less than 0.05."
Turning an inconclusive result into a negative result requires additional statistical skills and usually redoing the experiment because in many fields experiments are not powered for producing negative results with any kind of reasonable confidence.
Jared Diamond calls it something like the noble savage fantasy. Many people insist on believing that native cultures were all peaceful utopias who called up mother Earth every Sunday. The truth is that premodern cultures, including white European cultures, were almost all incredibly nasty. Occasional, isolated, exceptions existed, until they met their bloodthirsty enslaving, often cannibalistic neighbours. Those neighbours were sometimes English, Spanish, Carib, Iroquois, Viking, Ottoman, or pretty much anybody else. Modern societies aren't perfect, but they're far, far better than anything that existed even a couple hundred years ago.
The Pi is for teaching hardware hacking. It's very cheap compared to the usual development boards, and runs a regular OS unlike microcontrollers, so you can do your hardware hacking in Python using a GUI editor and don't have to worry about burning firmware. I've done a fair amount of uC work, but using a Pi is awfully convenient, and great for teaching people.
Gravity turns are not performed after getting above 10 km. Reality isn't KSP, and those things in KSP aren't gravity turns anyway. Gravity turns usually begin as soon as possible after launch (some rockets actually launch at a slight angle). The idea is that gravity will naturally bend your trajectory over into a curve and aerodynamic pressure will keep you pointed along that trajectory. Gravity turns are also called "zero-lift turns."
The space shuttle initiated it's turn quite early on, despite having to perform a roll maneuver. You can see it in this picture:
The web, including Slashdot, became commercialized. Slashdot makes money from ads. Ads are more valuable if Slashdot gets more traffic. Slashdot figured out that more people read and comment on inflammatory stories. Stories about some geek building a tricorder/kidney dialysis machine/warp drive in his basement aren't inflammatory (okay, maybe the last one....)
Complaining about it is like complaining that the news only shows violence, while watching the news.
I don't know what the regulations are in the US, but in Canada it's illegal to call yourself an engineer unless you meet certain criteria. There are mechanical, civil and electrical engineers. There are ALSO software engineers to complete an undergraduate degree in software engineering, work under the certification of a professional engineer, and pass the PEng tests. They have stamps, and the legal responsibilities that go with them.
Ugh. Not a standard box plot. A bar graph with error bars (showing 95% CI, NOT standard deviation), or a boxplot with 95% CIs instead of quartiles is better. Standard box plots are only useful for deciding whether your distribution is normal or not (and a histogram is better for that).
The author also needs to do hypothesis testing to actually say whether any of the dice are diverging from fairness (which was his stated goal). You can't just look at a graph and guess. Your point that he should also test randomness is also good.
It's not that hard, particularly if you're building some kind of small device. Many microcontrollers have analog inputs and those can generate quality random noise by just not connecting them to anything. If you wanted to use a PC for some reason a couple of dollars worth of crappy ADC and USB interface would get you a random number source dongle.
You could probably get decent random numbers from the thermal and electrical sensors on modern motherboards too.
Stronger than steel per kg. Cranes don't really care too much about the cable's mass so they use steel, which is strong, cheap, plentiful and heavy. If they did care, they'd use any of several synthetic fibres that are much stronger by mass than steel. In space elevators, cable mass is the major limiting factor.
Why not? Most apartments have green space around them. The drone says "I'm 5 min out, go put out your Amazon logo SIFT target (tm)" and you pop downstairs with a chunk of cardboard to mark out the front lawn.
Slashdot Mirror
Median is the same as average, for any symmetric distribution. The GP noted, correctly, that IQ is pretty normally distributed.
Technically, "average" is a bit poorly defined. In common use we normally intend the word to be synonymous with the mean, but in mathematical use it can mean any measure of central tendency, including the median.
I hate to tell you, but people with IQ's averaging under 100 are virtually 100% of the vote. Minus 1.
Torpedo nets were used a lot to protect ships in port, but not so much when they're moving. It's tough to spread out some kind of net in a fast moving stream of water. Plus you'd presumably fire a few torpedoes at anything you really wanted to sink, so now your net has to survive intact around a moving ship while getting hit with explosives.
Perhaps that's why they spent lots of money to make this one stealthy.
Tumblehome lowers centre of mass by making upper decks smaller (and therefore lighter). It was widely used in wooden sailing ships for just that purpose, improving stability. The French ship (only one was sold to Russia, the Russians built the others) you mentioned was an awkward transitional phase to modern ships where we insist on putting all the heavy stuff on top, regardless of how big the deck is. In that situation the ship is inherently unstable and tumblehome doesn't help much. So you replace tumblehome with flare, raising the centre of mass but gaining rollover resistance through a combination of spreading out the weight on the upper decks and buoyancy characteristics. Although, if the ship does capsize, it's often just as stable upside down.
To be fair, he clearly said women are taught to lie. That is, they are not innate liars, society makes them that way.
It's pretty easy to tell that Moissanite isn't diamond. Just shine a white light on it. The difference in refraction is easy to see by eye: the Moissanite is much more sparkly.
And mine came with a heatsink and fan.
The US constitution was written to head up a common law system, inherited from the British. Under common law, there are customary rights, responsibilities and laws that are traditionally assumed, but are not necessarily written down somewhere. To confuse things, philosophers at the time were debating "natural" rights which were somehow inherent in all humans. Well, except the black ones, brown ones, female ones, disabled ones, and maybe anybody who didn't own land.
It's not true. There are lots of published negative results. They're even fairly easy to publish, because they're so novel. What doesn't get published, I think correctly, are inconclusive results.
A negative result is "such and such hypothesis/theory/previous result predicts that we should see a signal of this magnitude. Our experiment measures the signal to be X within a margin of error Y. This result is has a very low probability P if such and such hypothesis is true."
An inconclusive result is "my p-value isn't less than 0.05."
Turning an inconclusive result into a negative result requires additional statistical skills and usually redoing the experiment because in many fields experiments are not powered for producing negative results with any kind of reasonable confidence.
See the difference?
Jared Diamond calls it something like the noble savage fantasy. Many people insist on believing that native cultures were all peaceful utopias who called up mother Earth every Sunday. The truth is that premodern cultures, including white European cultures, were almost all incredibly nasty. Occasional, isolated, exceptions existed, until they met their bloodthirsty enslaving, often cannibalistic neighbours. Those neighbours were sometimes English, Spanish, Carib, Iroquois, Viking, Ottoman, or pretty much anybody else. Modern societies aren't perfect, but they're far, far better than anything that existed even a couple hundred years ago.
Little, dammit, not littler.
Standard signal strength was a littler higher in the past as well. Modern cell phones have to use less permitted power to cut through more noise.
The Pi is for teaching hardware hacking. It's very cheap compared to the usual development boards, and runs a regular OS unlike microcontrollers, so you can do your hardware hacking in Python using a GUI editor and don't have to worry about burning firmware. I've done a fair amount of uC work, but using a Pi is awfully convenient, and great for teaching people.
Existing trains are even cheaper. The reason they use trucks is because the trucks can do local delivery.
Gravity turns are not performed after getting above 10 km. Reality isn't KSP, and those things in KSP aren't gravity turns anyway. Gravity turns usually begin as soon as possible after launch (some rockets actually launch at a slight angle). The idea is that gravity will naturally bend your trajectory over into a curve and aerodynamic pressure will keep you pointed along that trajectory. Gravity turns are also called "zero-lift turns."
The space shuttle initiated it's turn quite early on, despite having to perform a roll maneuver. You can see it in this picture:
http://upload.wikimedia.org/wi...
The web, including Slashdot, became commercialized. Slashdot makes money from ads. Ads are more valuable if Slashdot gets more traffic. Slashdot figured out that more people read and comment on inflammatory stories. Stories about some geek building a tricorder/kidney dialysis machine/warp drive in his basement aren't inflammatory (okay, maybe the last one....)
Complaining about it is like complaining that the news only shows violence, while watching the news.
Mmm, what are these activities you got to a technical conference for that involve being alone with a stranger?
I don't know what the regulations are in the US, but in Canada it's illegal to call yourself an engineer unless you meet certain criteria. There are mechanical, civil and electrical engineers. There are ALSO software engineers to complete an undergraduate degree in software engineering, work under the certification of a professional engineer, and pass the PEng tests. They have stamps, and the legal responsibilities that go with them.
Why? She came out of it looking awesome and Roblimo made a public ass of himself.
Ugh. Not a standard box plot. A bar graph with error bars (showing 95% CI, NOT standard deviation), or a boxplot with 95% CIs instead of quartiles is better. Standard box plots are only useful for deciding whether your distribution is normal or not (and a histogram is better for that).
The author also needs to do hypothesis testing to actually say whether any of the dice are diverging from fairness (which was his stated goal). You can't just look at a graph and guess. Your point that he should also test randomness is also good.
It's not that hard, particularly if you're building some kind of small device. Many microcontrollers have analog inputs and those can generate quality random noise by just not connecting them to anything. If you wanted to use a PC for some reason a couple of dollars worth of crappy ADC and USB interface would get you a random number source dongle.
You could probably get decent random numbers from the thermal and electrical sensors on modern motherboards too.
Stronger than steel per kg. Cranes don't really care too much about the cable's mass so they use steel, which is strong, cheap, plentiful and heavy. If they did care, they'd use any of several synthetic fibres that are much stronger by mass than steel. In space elevators, cable mass is the major limiting factor.
I hear a 5000 lb delivery truck crashing through your windshield can also turn a good day into a bad day.
Why not? Most apartments have green space around them. The drone says "I'm 5 min out, go put out your Amazon logo SIFT target (tm)" and you pop downstairs with a chunk of cardboard to mark out the front lawn.