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Living Room / Re: What annoys you to no end?
« Last post by 40hz on March 04, 2010, 05:16 PM »cucumber-sandwich orifice-cranioscopical (March 04, 2010, 04:50 PM)
I actually like that one!
Thanks Mr. C. You always make me laugh.
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cucumber-sandwich orifice-cranioscopical (March 04, 2010, 04:50 PM)
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probably not what you want to hear-mouser (March 04, 2010, 01:27 PM)
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Abstract
No Relation: The Mixed Blessings of Non-Relational Databases
Ian Thomas Varley, M.S.E. The University of Texas at Austin, 2009 Co-Supervisors: Adnan Aziz and Daniel Miranker
This paper investigates a new class of database systems loosely referred to as "non-relational databases," which offer a subset of traditional relational database functionality, in exchange for improved scalability, performance, and / or simplicity. We explore the differences in conceptual modeling techniques, and examine both the advantages and limitations of several classes of currently available systems, using running examples of real-world problems as implemented in both a traditional relational database model, as well as several non-relational models.
iPhones!-40hz (March 02, 2010, 10:58 PM)Especially now that I own one!-40hz (March 02, 2010, 10:58 PM)
...-f0dder (March 03, 2010, 01:40 AM)
What are pips?-Deozaan (March 03, 2010, 01:03 AM)
40hz...why do you know everything?! I mean, seriously...-superboyac (March 03, 2010, 12:01 AM)
I just discovered that youtube has a bunch of very good quality live performance videos from the 60s and 70s of one of my favorite groups, The Pentangle (i actually had a chance to see them live when i lived in england briefly). They played a combination of old medieval folk songs and jazz/rock stuff. Really amazing stuff.-mouser (March 02, 2010, 07:12 PM)
in a long time even though I'm a big fan from way back. Alan Thompson and Nigel Portman-Smith were a major source of inspiration for a lot of what I've done musically over the years.If you wish to avoid problems with salsa in the microwave, respect the 'No Dancing' warning on the inside of the door.-cranioscopical (March 02, 2010, 05:01 PM)
... There are two general classes of antennas, metallic conducting antennas and dielectric antennas that concentrate electromagnetic fields. The common antennas most people are familiar with are antennas made from conducting wires and rods such as the rabbit ears on indoor TV antennas or the multirod TV antennas on millions of roof tops. Dielectric antennas include various geometric solids including cylinders, spheres and plastic focusing lenses.
Non conducting dielectric materials are used for microwave cooking ware because they are relatively transparent to microwave energy. Also dielectric heating of food, particularly the water molecules in food, is the key principle used in microwave cooking.
Dielectric spheres one or more wavelengths in diameter form a special class of microwave antenna structure. When a dielectric sphere is immersed in a microwave field the spheres concentrate the electric field lines along an axis as shown in Figure A. If the sphere is slightly elongated, the field will usually align with the longest axis. This is exactly what water filled grapes (which are one or two wavelengths in diameter) will do in a microwave oven. The concentrated microwave field inside the grapes quickly heats the grapes to a high temperature after only 10 seconds of heating. ...
I put two grapes with their stem holes tightly together and the pair of grapes form a larger more efficient dipole like antenna as the microwave energy field flows between the two coupled grapes. I believe this is why the coupled grapes are much hotter after 10 seconds of heating than single grapes are.
Finally, I slightly separated the stem holes of the grape pairs by about one millimeter. As the grapes are heated each grape emits a jet of steam toward the other grape and the concentrated microwave fields from the spheres reach more than 3000 volts exciting the steam into a plasma state as shown in Figure B. The plasma forms a short circuited conductor between the dipoles and we get the arching in the region of steam between the arrows shown in Figure B. When the grapes have expelled their steam pressure I found that the plasma extinguishes and the arc goes out.
This explanation is based on spheres filled with pure water and we know that the grape juice is acidic not just pure water. A more complex reaction is occurring within the grapes. However, the external resultant arcing would probably be about the same for both cases.
I said in the beginning that this is a complicated experiment with a complicated answer. It would take some expensive microwave equipment and time to study the arcing grapes in more detail in the laboratory. I hope this helps answer some of your questions.
Make sure you switch on the spam filter. It's free at a cost.-PhilB66 (March 02, 2010, 06:29 PM)
***You put that together on a smartphone?!? All the more impressive!-wraith808 (March 01, 2010, 11:30 AM)
Nice, 40hz!!-SKesselman (March 01, 2010, 04:17 AM)
When we split the atom, Einstein remarked that everything changed but our way of thinking. You could make the same argument about acquisitions and option pools.
As Mark Suster recently noted, employees will never see a big payday at most startups unless the company shoots for the moon. This is probably why investors’ case for a company to sell early focuses exclusively on the founder: in most early-stage acquisitions, the liquidation preferences and deal-sweeteners only work for investors and founders.
Back when some companies sold at $50 million and others went public at $250 million, we could all agree that this was just how the cookie crumbled. But now that we live in a world where early-stage acquisitions are the only outcome to which most startups aspire, we have to re-allocate this smaller cookie.
The elephant in the room is that that founders and CEOs take almost all of it for themselves. I’ve looked at three or four deals recently as an adviser; in every case, the founder or CEO was taking more than half the company for himself, and leaving 10% for everyone else. Why aren’t we surprised when three months later that company can’t hire enough engineers?
