By far the most important martial arts skill is the ability to function effectively after receiving a powerful blow to the face, solar plexus, etc. The only way to develop this skill is by practicing it; very few people do, for obvious reasons. If your martial arts training does not include this, it may have many benefits, but is severely lacking as training for actual fighting.
Ask HN: Teach me something new
101–110 of 782 posts
Re: Ask HN: Teach me something new
#102Quantitative easing (sometimes mistaking called "money printing") isn't directly inflationary. Because when central banks buy bonds, they do not pay with normal money. Instead, they pay with a special type of money that can never enter the real economy (as to not create inflation). This special type of money are called "bank reserves". And bank reserves can only be used to 1) settle interbank transfers and 2) buy mor…
Buy more bonds from who? What can the seller of those bonds do with this money?
Re: Ask HN: Teach me something new
#103A conference that happened today:
https://www.hytradboi.com/
Re: Ask HN: Teach me something new
#104In your terminal Ctrl+a will return you to the start of whatever line you have typed, and ctrl+e will return you to the end.
This also works in any native text input on macOS.
Re: Ask HN: Teach me something new
#105Most of the scientific problems (diseases, quantum gravity, etc) have been resolved, it's just that no one knows it. Because researchers are paid to produce new papers, but nobody is paid to extensively read the ocean of existing papers.
Cancer? PNC-27 + thymalin
Ageing? Skq1 + Epitalon
Quantum gravity? https://arxiv.org/pdf/gr-qc/9706055.pdf
Re: Ask HN: Teach me something new
#106Quantitative easing (sometimes mistaking called "money printing") isn't directly inflationary. Because when central banks buy bonds, they do not pay with normal money. Instead, they pay with a special type of money that can never enter the real economy (as to not create inflation). This special type of money are called "bank reserves". And bank reserves can only be used to 1) settle interbank transfers and 2) buy mor…
Buy more bonds from who? What can the seller of those bonds do with this money?
[deleted]
Re: Ask HN: Teach me something new
#107White dwarfs and neutron stars are both "stellar corpses", the remnant of stars. White dwarfs roughly cram the Sun's mass into an Earth-sized sphere, neutron stars cram that amount of mass into a sphere of about 10km diameter.
Oh, and neutron stars have mountains: height differences on their crust of a few centimeters or less. Scaling that height difference takes more energy than scaling Mount Everest. Gravity is weird.
(Armchair interest in astrophysics; this is roughly correct but I'm sure others can point out nuances better).
Re: Ask HN: Teach me something new
#108The study of unidentified aerial phenomena (UFOs) and the acknowledgement of the extraterrestrial hypothesis (or extra dimensional) will become mainstream. https://www.gillibrand.senate.gov/news/press/release/gillibr... Soft disclosure has happened already via the USS Nimitz encounter. If UAPs are true, then the floodgates are open and will lead to a forced re-evaluation of other high strangeness phenomena (telepathy…
I always found it strange how UFOs concentrate in the U.S,is it because of the climate? /s I wanted to believe and there is a serious subreddit for UFOs but most are debunked. There exist ~2 truly mysterious UFOs and most of their mystery has been explained.
https://en.m.wikipedia.org/wiki/Folie_%C3%A0_deux
> Folie à deux ('folly of two', or 'madness [shared] by two'), also known as shared psychosis or shared delusional disorder (SDD), is a psychiatric syndrome in which symptoms of a delusional belief, and sometimes hallucinations, are transmitted from one individual to another.
Re: Ask HN: Teach me something new
#109fast forward - 4 billion years- during the Andromeda & Milky Way galaxies merger - the nights sky is expected to look like this: https://planetary.s3.amazonaws.com/web/assets/pictures/20120...
In 200 billion years all other galaxies will be beyond visibility horizon because of the space expansion (i.e. they will move away faster than light). Any new civilization then in unlikely to develop Big Bang theory.
Re: Ask HN: Teach me something new
#110I watched a piano/music teaching video from the 60s yesterday that made it all "click" [1]
Most modern music chords patterns are easy to find out on piano.
Start on any of the white keys, and play 7 white keys left to right. That is called a mode: a series of notes separated by certain intervals to compose a song.
Different modes have different vibes. Atmosphere of the song ( sad or happy) is directly correlated by how "willing" the notes are to resolve to the mode root (the first key of 7 you hit).
Now, take a 1-3-5 grip on the white keys (press one key, skip one, press one, skip one, press one). That is called the first chord. Move one to the right, and do it again. That is the second chord. One more to the right is the third etc.
Most popular songs are composed by using mostly the same repeating chord patterns:
- 1-5-1-4 (first, fifth, first, fourth)
- 1-4-5
- 1-5-6-4
If you experiment a little bit with this, you will instantly recognize a lot of songs, although they might be pitched higher or lower.
One step further, is learning different chord fingerings: we started with 1-3-5 which mostly results in a major or minor chord in a mode.
- 5th chords are 1-5
- 7th chords are 1-3-5-7
- sus2 is 1-2-5
- sus4 is 1-4-5
- etc
Now, the next thing you need to learn is to transpose: move songs up or down one or more keys to the left or right, but also taking into account the black keys when moving up/down. This will allow you to play along with a song in the perfect key (starting note of a scale)
There's other things (like modulating modes in songs), but this should give you a headstart.
[1] https://youtu.be/g7oA1-y0EJE
Edit: layout and some extra clarification