So that means 90% accurate tests will correctly identify 425 non-Alzheimers cases, miss 5 cases, detect 48 Alzheimers cases and give out 47 false-positives. So in this case when the test flags you, there is 50% chance that you are false-positive.
Think about pregnancy tests. If it shows positive, you most likely are. If it's negative, there's chance you might still be pregnant.
And your example is of a test that has false positives and false negatives.
The OP is right in that the 90% accuracy is not very useful until we know how common Alzheimer's is in the population taking the test
Good example of this was 99% accurate HIV test if it is applied to random sampling of all people. As HIV is so rare, if 100.000 people take the test, it will flag 1.000 as having HIV even when don't and correctly identify 10 real HIV cases and miss 1. (numbers pulled from memory and probably not accurate)
This one puzzles me somewhat. If one can make money by mining with ASIC rigs, why would anyone sell or rent them, wouldn't they make more money by mining? If they make more money by selling or renting, then wouldn't that mean that mining is silly?
Yup, it is good that there is couple companies hashing out the technologies. In couple years we'll have reasonable priced next generation VR goggles available and if we are lucky, they come with opensource SDKs.
Didn't say the specs weren't bad, if they just could do something with the persistent image problem (only show the image for a fraction of the frame) it might be nice. And their field of vision is quite narrow still.
And when it delivers 96Hz or faster screen with non-persistent image at 1080p resolution, it might be usable in VR.
I wanted to define the target as boiling but the article only speaks about warming the water with the microwave oven, which would happen when random photon emitted by the oven (most likely the outer surface of the oven) is absorbed by the cup.
Yeah, I hate these binary people, the truth is that the world is ternary.
Yup, Oracle is right on this case. The companies can provide support for Solaris, as in how to fix and configure things and also distribute OpenSolaris but distributing Solaris updates that have been downloaded from Oracle's password protected support site or providing login credentials to Oracle's support site is not ok.
Warming the water would only take seconds, boiling is of course measured with standard coffee cup, thus means 1.25 deciliters of water at sea level
The microwave in the example does suck, even the very first microwave oven we got in the 80s did boil a glass of water in 60 seconds.
I also hope that cheap UV-resins become available, unfortunately it seems that stereolithography companies want to go the inkjet route and keep their formulas secret so they can sell the print materials with higher margins for profit.
Sadly it seems they don't have 1-photon sensitive ccd. The article says:
“We didn’t invent a new laser or a new detector,” notes Kirmani. Instead, he explains, the team applied a new imaging algorithm that can be used with a standard, off-the-shelf photon detector.
They are sending single photon pulses of light repeatedly to the target position until they managed to capture one and then continue to scan the next "pixel" of the target. So this wont help with any of those things you listed.
Half of the cars I've had didn't come with ABS, ECU, airbag, security. They all did come with car radio/cassette player.
These aren't the drones you're looking for