35 Amazing Uses For Old Pallets. Matei Apostolescu - Work (higher resolution images) Aromas-Wheel.jpg (JPEG Imagen, 1024x1365 píxeles) - Escalado (66%) Sky Series Selected Works | Eric Cahan. 14 Punctuation Marks That You Never Knew Existed. Recent posts. 73% uploaded. Science. MIT discovers the location of memories: Individual neurons. Update 12/2/15: We've now followed up on this story: The more we learn about memory, the weirder it gets.
The original continues below. MIT researchers have shown, for the first time ever, that memories are stored in specific brain cells. By triggering a small cluster of neurons, the researchers were able to force the subject to recall a specific memory. By removing these neurons, the subject would lose that memory. As you can imagine, the trick here is activating individual neurons, which are incredibly small and not really the kind of thing you can attach electrodes to. To do this, the researchers used optogenetics, a bleeding edge sphere of science that involves the genetic manipulation of cells so that they're sensitive to light.
These modified cells are then triggered using lasers; you drill a hole through the subject's skull and point the laser at a small cluster of neurons. University Archive for the History of Economic Thought. How to Disagree. March 2008 The web is turning writing into a conversation. Twenty years ago, writers wrote and readers read. The web lets readers respond, and increasingly they do—in comment threads, on forums, and in their own blog posts. Many who respond to something disagree with it. That's to be expected. Agreeing tends to motivate people less than disagreeing. The result is there's a lot more disagreeing going on, especially measured by the word. If we're all going to be disagreeing more, we should be careful to do it well. DH0. This is the lowest form of disagreement, and probably also the most common. U r a fag!!!!!!!!!! But it's important to realize that more articulate name-calling has just as little weight.
The author is a self-important dilettante. is really nothing more than a pretentious version of "u r a fag. " DH1. An ad hominem attack is not quite as weak as mere name-calling. Of course he would say that. DH2. DH3. This is often combined with DH2 statements, as in: DH4. DH5. DH6. Related: Information Is Beautiful | Ideas, issues, knowledge, data - visualized! Diffraction Limited Photography: Pixel Size, Aperture and Airy Disks. Diffraction is an optical effect which limits the total resolution of your photography — no matter how many megapixels your camera may have. It happens because light begins to disperse or "diffract" when passing through a small opening (such as your camera's aperture). This effect is normally negligible, since smaller apertures often improve sharpness by minimizing lens aberrations. However, for sufficiently small apertures, this strategy becomes counterproductive — at which point your camera is said to have become diffraction limited.
Knowing this limit can help maximize detail, and avoid an unnecessarily long exposure or high ISO speed. Light rays passing through a small aperture will begin to diverge and interfere with one another. This becomes more significant as the size of the aperture decreases relative to the wavelength of light passing through, but occurs to some extent for any aperture or concentrated light source. Large Aperture Small Aperture Diffraction Pattern Airy Disk. Economagic: Economic Time Series Page. High Intensity Interval Training: Sprint Interval Workout. This sprint interval workout is a type high intensity interval training (HIIT) that helps build endurance, increase your anaerobic threshold and burn more calories and fat both during and after your workout.
For this workout, you'll have a longer warm up (10 minutes) before going into 4 all-out sprints at a Level 9 on this perceived exertion chart for 30 seconds each. Between each sprint, you'll recover at an easy pace for 4.5 minutes, giving you plenty of time to get ready for the next sprint. Keep in mind that all-out effort is very challenging, so modify the sprint intervals as needed to fit your fitness level and goals. You can do this workout on any cardio machine (set to manual mode) or with any outdoor activity such as walking, running or cycling. This workout is best for intermediate or advanced exercisers. How Can I Set Up a Home Recording Studio on the Cheap?
Getting started.