What is known about Flygsystem 2020 so far?

Very little is publicly known and it will be some time before much detail comes to light. From the concept art produced SAAB haven’t even finally decided the aircraft’s wing shape, because I have seen several different designs in SAAB images. When they do decide they won’t release any real detail, only images that show in a general way what the plane looks like. Since the principles of stealth are now so well known it is likely that the shape won’t be a secret but a lot of information on the aircraft will be classified. This means that only air forces that buy the plane will know all that it can do. It will need to be a networked plane and will be highly agile so it can dogfight. It will also feature good BVR capability and probably all-round IR sensor equipment similar to the DAS on board the F-35.

It is almost certain that it will be designed to operate from austere strips, stretches of public road with mobile maintenance vehicles, so it can operate in Sweden even if the airfields are bombed. This is a standard requirement for the Swedish Air Force and even if it isn’t a firm requirement for an export customer it is still a worthwhile attribute that has helped to sell the Gripen.

Any fighter produced by SAAB should be taken very seriously, they always represent superb value for money and perform well, outperforming aircraft with much higher price tags. So one thing you can be certain of is that if development is funded the aircraft will be superb.

Are human brain cells emitting weak audio noise during action potentials?

Are human brain cells emitting weak audio noise during action potentials?

Since human brain is working at electromagnetic extremely low frequency (ELF) range, not higher than 100 Hz and audio frequencies are partially overlapping with EM ELF range, does that mean, that the brain is emitting audio noise, which could be made audible if extremely amplified?

Nope, they aren't.

Some scientists actually fantasize about phonons and neuronal membranes*, but the problem here is that the brain is a big blob of gelatinous goo. When you see Japanese Taiko drummers**, you'll notice they're not using brains on stage. That's because gelatinous goo dampens vibrations. So nope, the brain doesn't emit neuronal noise. It does emit vascular noises related to the heartbeat and circulation. That reflects the hydrodynamic power involved and the proximity of large blood vessels to the skull.

Some comments:

  • Brains are not electromagnetic. As already noted, they're electrochemical. The meme that they work on electricity mostly confuses people and leads to all sorts of “brainwave transmission” nonsense. Electronics and computer analogies have some heuristic value, but they're not particularly descriptive.
  • Individual neurons don't “work” at “extremely low frequency.” They fire off the occasional action potential at rates of a few per second, but they're always squirting various goobers at each other and writhing their axon terminals and dendritic filopodia about.

*A proposed dynamic mechanism of nerve action potential.


What is an ABS function in Excel?


ABS is an excel function.

ABS Function returns the absolute value of any supplied number. This function displays the number without its sign.

For more details please visit the link below:




Why does my skin bleed easily?

Your skin is made of fragile components which can hurt easily by bruising hence making you bleed. However, there are diseases that make your blood loose regulation from the organs that control it. Such diseases include hepatitis and cirrhosis.

Should Eurovision bring back language diversity?

Yes, ESC should bring back language diversity in order to promote multiculturalism on entertainment industry. Language diversity is important for introduce a country/ethnic. This because we know countries and ethnics from languages, though not always. Languages is the key of existence of an ethnic/nation/country. Language diversity would change entertainment industry.

If your app or online service is going down for scheduled maintenance, what do you communicate to your customers?

Just like with making regular announcements, it’s best that you address the What?, Who?, When?, Where?, and Why? questions when communicating a scheduled system maintenance/downtime to your customers.

I say, the best approach is to be straight to the point. It’s a matter of making them understand that the inconvenience they’ll encounter now will provide them a long-term benefit moving forward.

The answers to following questions are some of the things you may want to inform your customers:

  • What is the maintenance about?
  • When will this scheduled maintenance take place?
  • How long would your customers be unable to access your service/product?
  • Will all customers be affected or will only a select region (or type of customer) be unable to access?
  • Will customers still be able to access certain parts of the software?
  • What can they do/cannot do during this time?
  • Do they need to take any action before, during or after the maintenance?
  • What particular product improvements or new features will they get after the maintenance?

The answers to these questions will help you set your customers’ expectations and help minimize the downtime’s negative impact to them.

Note that it’s best that you inform your customers ahead of time. Giving them a few days notice allows them to prepare themselves and to mitigate the effect on their work environment.

Also, it’s very important that you apologize for the inconvenience you’ll cause them. Even if it’s not your fault, you’ll have to acknowledge that the service you’re providing would be interrupted.

If Adam and Eve came from dirt, why is there still dirt?

Well, taking this literally: Only an Adam-sized quantity of dirt would have been needed to make an Adam. According to the story, Eve was made out of Adam and everybody else came from Eve so this was a one-off use of dirt. And finally, when Adam died he became dust once more ( Bible Gateway passage: Genesis 3:19 – New Revised Standard Version). So there was always plenty of dirt even when Adam was around.

Why are all cartoon characters cute and always smiling?

This is not true at all. Maybe it is if you are watching some plotles, mind numming thing such as Right Now Kapow or Uncle Grandpa. But there are many characters that are realistic and aren't always happy.

First example is of 2D, from the cartoon band Gorillaz. 2D has been through a lot, due to the tormenting of another band member. His eyes even became fractured, turning black. From listening to the songs he sings, you learn that he can't keep a girlfriend and often turns to alcohol. He rarely smiles, he's quite depressed.

Then we have Lapis Lazuli from Steven Universe. She is very upset and mistrusting in anyone due to being trapped in a mirror for hundreds of years. It took awhile for cheerful Steven to get her to smile.

These two old brothers are not happy. They hate each other's guts until the end of Gravity Falls.

Then look at Ice Bear. He's not neccearially sad, but he is not all happy and smiling. He's just a stoic bear. Who likes axes.

How many native ethnicities do you count in Spain?

You can’t talk about native ethnicities in Spain. Like the rest of Europeans, we are a mix of:

1) black skinned hunter-gatherers, who were the first to arrive

2) A wave of farmers from the middle east that brought their crops and livestock, starting around 10k years ago.

3) Bronze age horse riders from the steppes (present day Russia and Ukraine). They were males that left their women at home and brought metallurgic knowledge, chariots and horses. They came around 4,5k years ago, and must have enjoyed a tremendous success amoung the local ladies, as their contribution to our DNA is the highest of the three groups.

So what happened to celts and iberians, who blended and gave way to celtiberians?

The celts correspond approximately with the descendants of the third group. Their concentration is higher in the northern regions of Spain.

The iberians were a mix of the first two groups, that had been living and breeding together for millenia before the arrival of the celts.

If you add smaller amounts of blood from Phoenicians, Romans, Visigoths, Arabs and a few others, you will get the core composition of a present day spaniard.