
## Soma cube solution

![Soma cube solution](/img/notes/soma-cube-solution.svg)


Misc puzzles

[Top]

Soma cube solution


## Morse code

[[Wikipedia](https://en.wikipedia.org/wiki/Morse_code_mnemonics#English), [Vsauce video](https://www.youtube.com/watch?v=HY_OIwideLg), [Douglas Harder](https://ece.uwaterloo.ca/~dwharder/Morse_code/files/Morse_code.pdf)]

### Alphabets

Note: In word mnemonics, short letters (aceimnorsuvwxz) correspond to a dot and tall letters (bdfghjklpqty) or uppercase letters correspond to a dash.

\*: Tall letters with morse code starting with a dot.

| Alphabet  | Morse code | Syllabic mnemonic   | Word mnemonic          |
|-----------|------------|---------------------|------------------------|
| Aa        | • -        | aPART               | at                     |
| Bb        | - • • •    | BOOT to the head    | beer                   |
| Cc        | - • - •    | CO-ca CO-la         | Cate (name)            |
| Dd        | - • •      | DOCK WORK-er        | dam                    |
| Ee        | •          | eh?                 | e                      |
| Ff        | • • - •    | get a HAIR-cut      | cafe*                  |
| Gg        | - - •      | GOOD GRAV-y         | gym                    |
| Hh        | • • • •    | hip-pi-ty hop       | ears*                  |
| Ii        | • •        | i-i                 | in                     |
| Jj        | • - - -    | lets JUMP JUMP JUMP | edgy*                  |
| Kk        | - • -      | KAN-ga-ROO          | kit                    |
| Ll        | • - • •    | he LOST his lid     | else*                  |
| Mm        | - -        | MMMM-MMMM           | MM (2000)              |
| Nn        | - •        | NA-vy               | No!                    |
| Oo        | - - -      | ONE OF US           | IOU                    |
| Pp        | • - - •    | a POO-py smell      | apps*                  |
| Qq        | - - • -    | GOD SAVE the QUEEN  | plaq*                  |
| Rr        | • - •      | ro-TA-tion          | rye/rho                |
| Ss        | • • •      | si-si-si            | six                    |
| Tt        | -          | TALL                | t                      |
| Uu        | • • -      | un-der-WHERE?!      | ump                    |
| Vv        | • • • -    | Beet-ho-ven's FIFTH | vent                   |
| Ww        | • - -      | a WHITE WHALE       | why?                   |
| Xx        | - • • -    | X marks the SPOT    | foxy*                  |
| Yy        | - • - -    | WHY did I DIE?      | yell                   |
| Zz        | - - • •    | ZINC ZOO-keep-er    | Zhou (Chinese dynasty) |

### Numerals

| Numeral | Morse code |
| ------- | ---------- |
| 1       | • - - - -  |
| 2       | • • - - -  |
| 3       | • • • - -  |
| 4       | • • • • -  |
| 5       | • • • • •  |
| 6       | - • • • •  |
| 7       | - - • • •  |
| 8       | - - - • •  |
| 9       | - - - - •  |
| 0       | - - - - -  |

### Characters

| Character | Morse code    | Syllabic mnemonic          | Word mnemonic |
|-----------|---------------|----------------------------|---------------|
| .         | • - • - • -   | a STOP a STOP a STOP       | stop it       |
| ,         | - - • • - -   | COM-MA, it's a COM-MA      | plough        |
| ?         | • • - - • •   | it's a QUESTION, is it?    | and how       |
| :         | - - - • • •   | HA-WA-II stan-dard time    | pylons        |
| /         | - • • - •     | SHAVE and a HAIR-cut       | knife (slash) |
| "         | • - • • - •   | six-TY-six nine-TY-nine    | a quote       |
| '         | • - - - - •   | and THIS STUFF GOES TO me! | rhythm        |
| ;         | - • - • - •   | A-list, B-list, C-list     | dododo        |
| !         | - • - • - -   |                            | to yell       |
| (         | - • - - •     |                            | hedge         |
| )         | - • - - • -   |                            | hedged        |
| +         | • - • - •     |                            | clubs         |
| -         | - • • • • -   |                            | barrel        |
| =         | - • • • -     |                            | level         |
| _         | • • - - • -   |                            | so flat       |
| &         | • - • • •     |                            | again         |
| @         | • - - • - •   |                            | at Fiji       |
| $         | • • • - • • - |                            | richest       |

## Major system

[[Wikipedia](https://en.wikipedia.org/wiki/Mnemonic_major_system)]

| Numeral | Associated letters | Mnemonic                   |
|---------|--------------------|----------------------------|
| 1       | t, d               | t, d have 1 downstrokes    |
| 2       | n                  | n has 2 downstrokes        |
| 3       | m                  | m has 3 downstrokes        |
| 4       | r                  | Four ends with r           |
| 5       | l                  | Roman numeral L equals 50  |
| 6       | j, sh, ch, soft g  | Uppercase G looks like a 6 |
| 7       | k, hard g, hard c  | 7 is angular like the k    |
| 8       | f, v, ph           | Cursive f looks like an 8  |
| 9       | p, b               | 9 looks like a backward p  |
| 0       | z, s, soft c       | Zero begins with z         |

To remember the list in order: **Tony Marloshkovips**

When creating mnemonics with the major system, the consonant sounds of **h**, **w**, and **y** can be added freely since they don’t appear on the list. For example, 32 can become man, human, or woman.

## NATO phonetic alphabet

[[Wikipedia](https://en.wikipedia.org/wiki/NATO_phonetic_alphabet)]

Alfa, Bravo, Charlie, Delta, Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa, Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, Xray, Yankee, Zulu

## Programming

- CSS margin: **TRouBLe** (Top Right Bottom Left)

  ```css
  .class {
    margin: T R B L 
  }
  ```

- JavaScript [`unshift`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/unshift) vs [`shift`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/shift):
  - `unshift` is longer. Makes the array longer.
  - `shift` in shorter. Makes the array shorter.

## Misc

- Confronting a screw:
  
  **Righty-tighty, Lefty-loosy** or **Right on, Left off**

- Identifying coral snakes:
  
  **Red touches yellow, kills a fellow. Red touches black, friend of Jack.**

- Order of taxa in biology (Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species, [Variety]):

  **Dear King Philip Came Over For Good Soup**.

- Order of planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto):

  **My Very Easy Method Just Speeds Up Naming Planets**.<br />
  For eight planets: **My Very Easy Memory Jingle Seems Useless Now**

- **PANIC**: Positive Anode Negative Is Cathode.
- **LEO the lion says GER**: **L**oss of **E**lectrons, **O**xidation; **G**ain of **E**lectrons, **R**eduction
- **AN OIL RIG CAT**

  At the **AN**ode, **O**xidation **I**nvolves electron **L**oss.<br />
  **R**eduction **I**nvolves electron **G**ain at the **CAT**hode.

- The Great Lakes in order of largest to smallest (Superior, Huron, Michigan, Erie, Ontario):

  **Super Heroes Must Eat Oats**.

- Euler's characteristic (X = F + V - E): **fav.me** (F add V, minus E)
- 10 organ systems of the human body (Nervous, Integumentary, Circulatory, Endocrine, Respiratory, Digestive, Reproductive, Urinary, Muscular, Skeletal): **NICER DRUMS**
- Colors of rainbow (Red, Orange, Yellow, Green, Blue, Indigo, Violet): **ROYGBIV** (**VIBGYOR** in reverse)
- Speed of light (299,792,458):

  **We guarantee certainty, clearly referring to this light mnemonic.** (Counting the number of letters in each word)

- Increasing frequency or decreasing wavelength of electromagnetic waves (Radio waves, Microwaves, Infrared, Visible light, Ultraviolet, X-Rays, Gamma Rays):

  **Rich Men In Vegas Use eXpensive Gadgets**<br />
  Opposite order: **Good Xylophones Use Very Interesting Musical Rhythms**

- Layers of atmosphere (Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere): **The Strong Man's Triceps Exploded** or **The Sick Man's Thermometer Exploded**
- OSI Network Layer model (Physical, Datalink, Network, Transport, Session, Presentation, Application) **Please Do Not Throw Sausage Pizza Away** or **Please Do Not Teach Students Pointless Acronyms**
- Differentiating stalactites from stalagmites: **The 'mites go up and the 'tites come down**
- Order of Operations (Parenthesis, Exponents, Multiplication and Division, Addition and Subtraction): **PEMDAS**
- Determining which functions are to be chosen as u and DV in integration by parts (Logarithmic, Inverse trigonometric, Algebraic, Trigonometric, Exponential): **LIATE**
- The first 11 (and most important) Ionian philosophers (Thales, Heraclitus, Empedocles, Leucippus, Anaximander, Democritus, Zeno, Anaximenes, Protagoras, Parmenides, Anaxagoras): **THE LAD ZAPPA**
- Diatomic elements (Bromine, Iodine, Nitrogen, Chlorine, Hydrogen, Oxygen, Fluorine): **BrINClHOF** (pronounced 'brinkelhoff')
- Trigonometric ratios (Sine = Opposite / Hypotenuse, Cosine = Adjacent / Hypotenuse, Tangent = Opposite / Adjacent): **SOH CAH TOA**
- Daylight savings time: **spring forward, fall back**

- Sign of each trigonometric functions in each quadrant of the plane: **All Students Take Calculus** or **ASTC**
  - Quadrant I: All trigonometric functions are positive.
  - Quadrant II: Sine and cosecant functions are positive.
  - Quadrant III: Tangent and cotangent functions are positive.
  - Quadrant IV: Cosine and secant functions are positive.

- Resistor color codes: **Better Be Right Or Your Great Big Vacation Goes Wrong.**
  - 0 = Black
  - 1 = Brown
  - 2 = Red
  - 3 = Orange
  - 4 = Yellow
  - 5 = Green
  - 6 = Blue
  - 7 = Violet
  - 8 = Gray
  - 9 = White

- e (2.718281828459045)

  - Andrew Jackson was the 7th president of the US: 7
  - He was elected in 1828 and served two terms: 1828 1828
  - His favorite type of triangle was the right angled isosceles triangle: 45 90 45



Mnemonics


## Hacker News

- See all posts from a specific domain: [news.ycombinator.com/from?site=stratechery.com](https://news.ycombinator.com/from?site=stratechery.com)
- Front page on Feb 19, 2007: [news.ycombinator.com/front?day=2007-02-19](https://news.ycombinator.com/front?day=2007-02-19)
- Posts with over 300 points: [news.ycombinator.com/over?points=300](https://news.ycombinator.com/over?points=300)

## Reddit

- View posts from multiple subreddits: [reddit.com/r/pics+videos](https://reddit.com/r/pics+videos/)
- Alternative to `reddit.com/r/pics`: [pics.reddit.com](https://pics.reddit.com)
- Append `.json` at the end of a URL to get a JSON response:
  - [reddit.com/r/pics.json](https://reddit.com/r/pics.json)
  - [reddit.com/u/spez.json](https://www.reddit.com/u/spez.json)
- See all posts from a specific domain: [reddit.com/domain/news.ycombinator.com](https://www.reddit.com/domain/news.ycombinator.com)
- Create a new community: [reddit.com/subreddits/create](https://www.reddit.com/subreddits/create)
- View joined subreddits: [reddit.com/subreddits/mine](https://www.reddit.com/subreddits/mine)

## GitHub

- View public SSH/GPG keys for a profile: [github.com/gorhill.keys](https://github.com/gorhill.keys) / [github.com/gorhill.gpg](https://github.com/gorhill.gpg)

## DuckDuckGo

- [DuckDuckGo Bangs](https://duckduckgo.com/bang)
- [DuckDuckGo Instant Answers](https://duck.co/ia)
  - [random person](https://duckduckgo.com/?q=random+person)
  - [color picker](https://duckduckgo.com/?q=color+picker)
  - [#a326bf](https://duckduckgo.com/?q=%23a326bf)
  - [rubiks cube patterns](https://duckduckgo.com/?q=rubiks+cube+patterns)
  - [qr code sample_text](https://duckduckgo.com/?t=ffab&q=qr+code+sample_text)
  - [shorten https://duckduckgo.com](https://duckduckgo.com/?q=shorten+https%3A%2F%2Fduckduckgo.com): Shorten a link.
  - [expand https://bit.ly/2MQPwSt](https://duckduckgo.com/?q=expand+https%3A%2F%2Fbit.ly%2F2MQPwSt): Expand the shortened link to original link.
  - [loan \$100000 at 5% with 20% down paymeny for 10 years](https://duckduckgo.com/?q=loan+%24100000+at+5%25+with+20%25+down+paymeny+for+10+years): Calculate monthly payments on a loan.
  - [recipe curry](https://duckduckgo.com/?q=recipe+curry): Find recipes quickly.
  - [is youtube down](https://duckduckgo.com/?q=is+youtube+down): Downtime checker.
  - [xkcd 353](https://duckduckgo.com/?q=xkcd+353): xkcd comics.
  - [password 30 strong](https://duckduckgo.com/?q=password+30+strong): Password generator.
  - [figlet DUCKduckGO](https://duckduckgo.com/?q=figlet+DUCKduckGO): FIGlet.
  - [2048](https://duckduckgo.com/?q=2048): 2048.
  - [timer](https://duckduckgo.com/?q=timer)
  - [stopwatch](https://duckduckgo.com/?q=stopwatch)
  - [deal 7 cards](https://duckduckgo.com/?q=deal+7+cards)
  - [tldr tar](https://duckduckgo.com/?q=tldr+tar): Unix cheatsheets.
- "I'm Feeling Lucky" for DuckDuckGo: If you prefix the search query with '\\', it will open the first search result. Adding `!` at the beginning or the end of the search term will achieve the same thing.

## Google

- URL for "I'm Feeling Lucky": `https://www.google.com/search?btnI=I&q=SEARCH_TERM`
- [color picker](https://www.google.com/search?q=color%20picker)
- [calculator](https://www.google.com/search?q=calculator)
- [unit converter](https://www.google.com/search?q=unit+converter)
- [internet speed test](https://www.google.com/search?q=internet+speed+test)

### Google Search easter eggs

- [askew](https://www.google.com/search?q=askew)
- [game of life](https://www.google.com/search?q=game+of+life)
- [do a barrel roll](https://www.google.com/search?q=do+a+barrel+roll)
- [google in 1998](https://www.google.com/search?q=google+in+1998)
- [chess](https://www.google.com/search?q=chess)
- [wizard of oz](https://www.google.com/search?q=wizard+of+oz)
- [dog](https://www.google.com/search?q=dog)
- [cat](https://www.google.com/search?q=cat)
- [joey tribbiani](https://www.google.com/search?q=joey+tribbiani)
- [chicxulub](https://www.google.com/search?q=chicxulub)

### YouTube

- Create playlist from video IDs: [youtube.com/watch_videos?video_ids=dQw4w9WgXcQ,jNQXAC9IVRw,LeAltgu_pbM](https://www.youtube.com/watch_videos?video_ids=dQw4w9WgXcQ,jNQXAC9IVRw,LeAltgu_pbM)
- Creepy redirect: [youtube.com/watc?v=QH2-TGUlwu4](https://www.youtube.com/watc?v=QH2-TGUlwu4) `deprecated`. This used to redirect to the classic [Username 666](https://www.youtube.com/watch?v=7iFXyLah2oQ) video.

See also: [YouTube Oddities](https://github.com/mattwright324/youtube-metadata/wiki/YouTube-Oddities)

## IRC

- Register your nick

  ```plaintext
  /msg NickServ REGISTER <password> <email>
  ```

- Identify your nick

  ```plaintext
  /msg NickServ IDENTIFY <nick> <password>
  ```

- Change password

  ```plaintext
  /msg NickServ SENDPASS <account_name>
  /msg NickServ SET PASSWORD <new_password>
  ```

## Onion links to popular services

- [Twitter](https://twitter3e4tixl4xyajtrzo62zg5vztmjuricljdp2c5kshju4avyoid.onion), [Facebook](https://facebookcorewwwi.onion/), [ProtonMail](https://protonirockerxow.onion/), [DuckDuckGo](https://3g2upl4pq6kufc4m.onion/), [Keybase](http://keybase5wmilwokqirssclfnsqrjdsi7jdir5wy7y7iu3tanwmtp6oid.onion/), [BBC](https://www.bbcnewsv2vjtpsuy.onion/), [The New York Times](https://www.nytimes3xbfgragh.onion/), [Searx](http://searxspbitokayvkhzhsnljde7rqmn7rvoga6e4waeub3h7ug3nghoad.onion/)

