 |
| Warning Sign |
New to me anyway. Just east of 99th Avenue on NE Glisan Street in Portland. You can see it on Streetview here.
Subscribe to:
Post Comments (Atom)
skip to main |
skip to sidebar
Intel's Ronler Acres Plant
Intel's Ronler Acres Plant
Me in 3-D
- Chuck Pergiel
- Silicon Forest, United States
- Artist, Engineer, Witch Doctor
About This Blog
My YouTube videos
My collection of written stuff.
My collection of pictures on Tumblr.
Some simple programs on Github.
Twitter short videos and memes.
Subscribe by Email
Chrysler Sebring, the Infamous
Not Your Run-Of-The-Mill Books
- A History of Communication by Mia Maluchi and Donald Walton
- Biking the Grand Canyon Area by Andrea Lankford
- Fallen Iron Curtain: A Diary of Operation Farm Ukraine 1993
- From Tool to Partner The Evolution of Human-Computer Interaction by Jonathan Grudin
- Howl of the Mountain King by Stuart Savory
- I Work on a Starship by Roberta X
- Knots & Anchors by S. Y. Afolee (pdf)
- Missives from Maravida by Sandy L. Davis
- Pluto's Realm by Elena Filatova
- Two Stroke Tuner's Handbook by Gordon Jennings
Blogs I Read - In alphabetical order because I like order.
Games
- 0h h1
- 2048
- 3D Logic Cube
- Bart Bonte games
- Blocks
- Color Junction
- Cubox 3
- Deduction
- DOGE2048
- Entanglement
- Equilibria - Won't play on Chromebook.
- Fe[26]
- Flood It
- Geoguesser - Where in the world?
- Gravity
- Grow family of games
- Hexagon of Worms
- Industrial Zombie
- Initial Conditions
- Isoball 2
- Jigsaw Planet
- Jumble
- Linez - Dead?
- Link All - Chromebook only
- Lite-Bot
- Little Alchemy
- Little Wheel
- Mahjong
- Minesweeper
- Minim
- Numbrix
- Planarity
- Psychiatric Hospital for Plush Toys
- Quento
- Spider Solitaire
- Streamline
- Sudoku
- Triplex
- Walk Home Drunk
- Zenge: Starborn - Sliding Blocks
Pages, some stolen, some original
- Albert A. Michelson - Career and Influence
- Amish Farmers
- Betsy Devine's Algebraic Limerick
- A Better City
- Blacklist - Kirk Douglas’ revisionist history
- Blood Oranges
- A Brief History of Iron and Steel Production
- Citibank in South Dakota
- Classic Kit: Sprengel pump
- Climate Change Explanation
- Cuba
- Cuba, Part 2
- DKnight MagicBox II Speaker
- Don Carroll Bliss Reports From India, 1925
- El Chapo Speaks
- Essential Science Fiction Novels
- El Chapo and the Secret History of the Heroin Cri...
- Emergence
- Flak Guns In The Brenner Pass By Frank B. Dean, 380th, 310th
- The Governing Cancer of Our Time
- How FBI super snitch Chuck Blazer went from steali...
- I Dropped Acid and Saw Into the Future: My Surreal First Time At CES by Erin Gloria Ryan
- If You’re Not Paranoid, You’re Crazy
- INVESTING DIMES: FAHRENHEIT 451
- Issues relating to the deceased
- Jingpeng Pass - Route Description
- Jury Nullification: The Right of Free Americans
- Life On The Anti-Aircraft Gun-sites WW2 by Joyce S...
- Midnight in Europe - Alan Furst
- Modern Day Slavery, Part 1 - Used and Abused
- Modern Day Slavery, Part 2 - How They Come
- Modern Day Slavery Part 3 - The Real Cost
- My Mathematical Moments of Fame
- A note of appreciation from the rich
- Notes on Coalescent by Stephen Baxter
- Obi-Wan Kenobi Is Dead, Vader Says
- Old Stuff
- On hygiene, intellectual and otherwise
- Phantasmagoria
- Rick-in-Billy
- Rosetta Orbital Period
- Swinging on the Burj Khalifa
- Text of President Obama’s Speech in Hiroshima, Jap...
- Tunes
- Tron Battle dot C
- Veronal Poisoning
- Saving Paris From Islamism, by Barton Swaim
- Sammy's Linto Aermacchi
- Spy agency pulls back cloak on secret Cold War sat...
- Stomach growling on a diet? Here’s what and when t...
- Switchbacks over Stevens Pass
- Table of Places
- The Tunnel under Havana Harbor
- Water Injection
- Weight
- When I Landed The War Was Over
- Why Prewar Car Engines Need Bearings Made From Scr...
Blog Archive
-
▼
2024
(530)
-
▼
June
(87)
- Wheelie Yellow
- Bandana
- Army of One
- Hercules Explosives
- Air Hammer versus Rivet Gun
- Witness to the end of Civilization
- Counting in Base 60
- Interest Rates
- A Tour of the Most Expensive Screw in the WORLD
- Thursday Lunch
- Calculating Empires - A Genealogy of Technology an...
- Sheep Herding
- Dream
- Ghostwriter - RJD2
- Technicolor
- Hot Water Pot
- Killdozer Returns
- Misirlou
- Assange
- Cool Water
- Get a Move On
- Noisemakers
- Wagner PMC (Private Military Company)
- Dragons
- Lugnuts
- 100 YEARS U.S. MILITARY HANDGUNS
- More Dirty Commies
- Commies
- The Madonna of the Sleeping Cars
- B-25 & B-26
- Furiosa
- Girl From the North Country - Musical
- Giant Snake Geography
- Pleasure in a toothache
- Spindle
- Drone Wars
- Budos Rising
- Dragons
- Middle of Nowhere
- House of the Dragon
- Dope Lemon - Hey You
- Toy Terminator
- A Man In Full
- Stu
- Scrappy
- Fred Meyer Gasoline
- Exposed Interior Roof Truss
- Racism
- The Spy Who Came In From The Cold by John le Carré
- Pérdida Tráiler (Netflix) 2020
- Border Marker
- The Who - The Seeker (1970)
- More No Shovel
- No Shovel, No Backhoe
- Bureaucracy
- Breaking Cat News
- Death to Hamas
- Do Fish Fart?
- Heroes
- This morning's chuckle
- Poppies
- Quote of the Day
- Mooney M-20
- SpaceX Starship 4th Test Flight
- Screw You, Worm
- 3D Print Farm
- Jump Spider, Jump
- Fishing for Privacy
- Don't Up Matter Give You
- Marvin
- Grand Hotel Lobby, Mackinac Island
- Science Fiction Prisons
- New Warning Sign
- The Atmosfär Project
- Gucci Slide - Nick Bultman
- The Borg Have Landed
- Mechanicing Dream
- Squiggly
- Jet Fighter Dream
- Jules Verne - Nautilus
- Thunderstruck
- Trump versus the American Aristocracy
- Swimming Dream
- Funny?
- Bodkin Series| Netflix
- Beriev Be-200
- Russia's Invasion of Ukraine
-
▼
June
(87)
Some of my Books
Authors I like
Table of Place Labels
Labels
- 10th Century (6)
- 11th Century (7)
- 12th Century (5)
- 13th Century (10)
- 14th Century (11)
- 15th Century (10)
- 15th Century BC (1)
- 16th Century (15)
- 17th Century (20)
- 18th Century (38)
- 1920's (12)
- 1930's (47)
- 1950s (18)
- 1960s (6)
- 1970s (5)
- 1995 Ford Windstar (3)
- 1999 Dodge Dakota (26)
- 1999 GMC Suburban (5)
- 19th Century (140)
- 1st Century (6)
- 1st Century B.C. (1)
- 1st millenium BC (1)
- 2001 Chrysler Sebring (15)
- 2005 Toyota Tundra (4)
- 2006 Mitsubishi Endeavor (28)
- 2008 Hyundai Sonata (11)
- 2008 Subaru Forester (1)
- 2015 Chevrolet Colorado (6)
- 2016 Mazda 3 (6)
- 2019 Nissan Frontier (1)
- 20th Century (101)
- 21st Century (2)
- 2nd Century (2)
- 2nd Century BC (2)
- 3D printing (14)
- 3rd Century (2)
- 4th Century (2)
- 5th Century BC (2)
- 6th Century (1)
- 8th Century (5)
- 9th Century (5)
- A Better City (6)
- Adam Berg (3)
- Advertising (15)
- Afghanistan (15)
- Africa (92)
- Agriculture (12)
- Aircraft (628)
- Aircraft Beech (11)
- Aircraft crash (24)
- Aircraft de Havilland (19)
- Aircraft Jet FIghter (63)
- Aircraft Military Special (12)
- Aircraft Super Tucano (3)
- Airliners parked (6)
- Airlocks (11)
- Alabama (2)
- Alaska (35)
- Alaska Aircraft (14)
- Albania (6)
- Alcohol (25)
- Algeria (4)
- Altitude Record (13)
- American Civil War (7)
- AN-225 (4)
- Ancient History (39)
- Animals (123)
- Antarctica (12)
- Anti-Aircraft (17)
- Antonov (15)
- Antonov An2 (8)
- Applied Science (6)
- Arabia (3)
- Arctic (23)
- Argentina (37)
- Arizona (9)
- Arkansas (1)
- Armor (12)
- Art (290)
- Artillery (7)
- Ashenden (1)
- Astronomy (45)
- Atlantic Ocean (3)
- Atomics (77)
- Audio (33)
- Austin (1)
- Australia (25)
- Austria (4)
- Azerbaijan (2)
- B-17 (8)
- B-24 (6)
- B-25 (7)
- B-52 (1)
- Bad Mood (2)
- Balloons (12)
- Bananastan (3)
- Bangladesh (3)
- Barcelona (9)
- Beer (3)
- Belgium (3)
- Belief (1)
- Benin (1)
- Berlin (7)
- Berlin Airlift (5)
- Bicycles (38)
- Big Brother (2)
- Big City Clock (4)
- Big Ideas (114)
- Biology (12)
- Birds (20)
- Blogger (21)
- Blood of Victory (3)
- boats (50)
- Bolivia (4)
- Bomb (6)
- Bonneville Dam (1)
- Books (425)
- Bosch (7)
- BossHoss (6)
- Boston (2)
- Brain (6)
- Brave New World (2)
- Brazil (10)
- Bridge (49)
- Bruce Willis - Die Hard (7)
- Buenos Aires (14)
- bugs (14)
- Buildings (119)
- Bulgaria (1)
- Bulldozer (2)
- Bureaucracy (9)
- Burma (1)
- Business (122)
- California (51)
- California Bob (16)
- Cambodia (1)
- Cameroon (1)
- Canada (28)
- Cannons (1)
- Captain Coignet (4)
- Car Repairs (57)
- Caribbean (4)
- Cars (389)
- Cassini (6)
- Castles (18)
- Cathedral (17)
- Caves (4)
- CDC 6600 (6)
- Central America (7)
- Central Asia (20)
- Chad (1)
- Charts (5)
- Chemistry (43)
- Chess (1)
- Chicago (2)
- Chile (4)
- China (99)
- Chromebook (4)
- CIA (6)
- Cigarettes (13)
- Civil Rights (2)
- Civilization (72)
- Claire Chennault (1)
- Climate (3)
- Clint Eastwood (22)
- Clocks (13)
- Clouds (3)
- Coal (11)
- Code (7)
- Coffee (3)
- Cold War (40)
- Colombia (4)
- Colorado (9)
- Command and Control (4)
- Commercial Fishing (30)
- Computer (297)
- Computer Applications (81)
- Computer Programming (103)
- Congo (6)
- Conspiracy (51)
- control (3)
- Copenhagen (5)
- Copper (9)
- Corsica (2)
- Cosmic (3)
- Cosmic Rays (9)
- COVID-19 (54)
- Crazy (11)
- Crime (51)
- Crimea (3)
- Croatia (1)
- Cryogenics (5)
- Cryptocurrency (18)
- Cryptography (9)
- Cuba (45)
- Cube Puzzle (3)
- Culture (23)
- Cyprus (1)
- Czechia (1)
- Dam (7)
- dance (15)
- de Havilland Mosquito (8)
- dead map link (3)
- dead photo album link (4)
- Death (6)
- Delaware (1)
- Denmark (5)
- Diamonds (9)
- Dijbouti (2)
- Dirty Commies (8)
- Disabled (4)
- Djibouti (2)
- Donuts (1)
- Doom & Gloom (1)
- Douglas DC-3 (8)
- Downtown (2)
- Drag Racing (8)
- Dreams (84)
- Drones (42)
- drugs (10)
- Dubai (2)
- East Asia (18)
- East Germany (13)
- Eastern Oregon (10)
- Eclipse IDE (8)
- Economics (195)
- Ecuador (4)
- education (40)
- Egypt (13)
- electric power (14)
- Electric Power Generation (25)
- Electric Vehicles (13)
- Electromagnetic Radiation (31)
- electronics (35)
- Elephants (4)
- Empire of Lies (1)
- Energy (9)
- engines (56)
- England (10)
- Environment (59)
- EPA (1)
- Ertuğrul (11)
- Espionage (29)
- Estonia (1)
- Eternity II (9)
- Ethiopia (1)
- Europe (70)
- Evil Corporations (2)
- F-100 (5)
- F-14 (4)
- F-15 (13)
- F-16 (1)
- F-4 Phantom (4)
- F/V Silver Spray (3)
- Faces (1)
- Family (27)
- Fantasy (5)
- Fashion (8)
- Fashionistas (1)
- Fat (20)
- Ferry (1)
- fertilizer (1)
- Fighting (5)
- Finland (16)
- Fire (7)
- Flood (2)
- Florence (4)
- Florida (9)
- Flying boat (14)
- Flying girls (10)
- Flying people (7)
- Flying Tigers (8)
- Food (103)
- Foolishness (9)
- Foreign Policy (4)
- Forest Fires (29)
- France (65)
- Free Advice (2)
- Freeway (1)
- Funnies (190)
- Furniture (6)
- Futility (4)
- Gambling (5)
- Games (63)
- Geography (12)
- Geology (8)
- Geometry (3)
- Geopolitics (67)
- Georgia (3)
- Georgia Asia (1)
- Germany (34)
- Get offa my lawn (1)
- Girls (69)
- Girls with Cameras (7)
- Girls with Guns (84)
- Girls with stuff (14)
- Gizmos (20)
- Gloster Gladiator (1)
- Gold (10)
- Good example (1)
- Good luck (1)
- Google (45)
- Google Docs (1)
- Google Earth (5)
- Google Maps (101)
- Government (36)
- Granite (2)
- graphics (14)
- Great Britain (2)
- Greece (3)
- Greed (2)
- Greenland (3)
- Guatemala (2)
- Guns (183)
- Guyana (1)
- Haiti (2)
- Hawaii (6)
- Health (35)
- Hearing (5)
- Helicopters (55)
- Helium (1)
- Hertz Rent-A-Car (4)
- High Speed Photography (10)
- Hillsboro (48)
- Hip Joint (25)
- history (54)
- Holland (9)
- Home Repair (106)
- Home Theater (18)
- Homeless (5)
- Honduras (1)
- Hong Kong (3)
- Horses (26)
- Household (17)
- Hovercraft (1)
- Howard Hughes (6)
- HTML (17)
- Human Factors (135)
- humor (21)
- Hungary (4)
- Iaman (19)
- Iceland (9)
- Idaho (3)
- Idle Speculation (5)
- Illinois (3)
- Implants (7)
- India (50)
- Indian Ocean (3)
- Indiana (3)
- Indonesia (3)
- Industry (10)
- Information (4)
- Inscrutable (1)
- Internet (17)
- Iowa (23)
- Iran (30)
- Iraq (7)
- Ireland (5)
- Islam (12)
- Island (13)
- Isle of Man (7)
- Israel (20)
- ISS (2)
- Italy (26)
- Ivory Coast (1)
- James Bond (19)
- Japan (33)
- Joe Scott (1)
- John Hunter (2)
- Jordan (3)
- Joseon (9)
- Just plain wacko (7)
- Just Slightly Incoherent (3)
- Justified (5)
- Kafka is my prophet (3)
- Kamov (3)
- Kansas (2)
- Kazakhstan (3)
- Kentucky (1)
- knowledge (57)
- Korea (33)
- Kuwait (1)
- Kyrgyzstan (1)
- Land (1)
- Land speed record (9)
- Language (17)
- Latvia (1)
- Law (36)
- Lead Metal (30)
- Lebanon (1)
- LEDs (8)
- Lego (1)
- Lethal Legacy (5)
- Lewis & Clark (6)
- Libya (1)
- Light (12)
- Lighthouses (3)
- Lightning (1)
- Lindybeige (1)
- Link (591)
- Linux (21)
- Liza (5)
- Lock Picking Lawyer (3)
- Logistics (1)
- London (8)
- Louisiana (3)
- Lunch (2)
- Lusitania (3)
- Luxembourg (2)
- Lying Liars (1)
- Macedonia (1)
- Machine Tools (38)
- Mafia (6)
- Maine (1)
- Malaysia (1)
- Mali (1)
- Malta (2)
- Map error (3)
- Maps (263)
- Mariachi (2)
- Mark Felton (1)
- Mars (6)
- Massachusetts (1)
- Math (71)
- Mauritania (1)
- Me (67)
- Mechanics (402)
- Media (12)
- Medicine (78)
- Memory (1)
- Men are from Mars (1)
- Mercedes (5)
- Metal (19)
- Metal working (25)
- Mexico (41)
- MH370 (4)
- Michigan (10)
- Microbiology (19)
- Mideast (83)
- Midwest Tour (10)
- Military (81)
- Military Laser Weapon (5)
- Mining (36)
- Missouri (1)
- Mitchell Movie Cameras (3)
- Models (21)
- Modern Life (262)
- Money (148)
- Mongolia (3)
- Monkeys (2)
- Montana (4)
- Morocco (8)
- Moscow (13)
- Motorcycles (121)
- Movie Cameras (7)
- Movie fight (1)
- Movies (595)
- Murder Mystery (3)
- music (83)
- Music video (622)
- Muskegon (2)
- MyOfficePC (7)
- Namibia (1)
- Napoleon (1)
- NASA (5)
- Natural gas (52)
- Navigation (5)
- Nazis (2)
- Neal Stephenson (3)
- Negative Income Tax (11)
- Nepal (1)
- Netflix (1)
- Neuroscience (3)
- Nevada (8)
- New Hampshire (1)
- New House (20)
- New Mexico (6)
- New Orleans (2)
- New York (12)
- New Zealand (17)
- Newspapers are for entertainment purposes only. (11)
- Nickel (6)
- Nigeria (3)
- Night Vision (8)
- Nonsense (2)
- Nord Stream (13)
- North Carolina (1)
- North Dakota (1)
- North Korea (16)
- North Swenson (2)
- Norway (39)
- nuclear (3)
- Ohio (20)
- OHSU (2)
- Oil (79)
- Oklahoma (4)
- Optics (10)
- Orbital Mechanics (2)
- Oregon (79)
- Orion spacecraft (8)
- Orthosphere (5)
- Other (29)
- out of control lawyers (5)
- P-38 (3)
- Pacific Ocean (24)
- Pack mentality (1)
- Pakistan (14)
- Palaver (1)
- Panama (1)
- Papua New Guinea (1)
- Parachute (1)
- Paraguay (1)
- Paris (9)
- Patti Page (2)
- Paul Allen (4)
- Peasants' Rebellion (1)
- People (230)
- Persia (2)
- Personal History (10)
- Petty Fascists (2)
- Phalanx (3)
- Philadelphia (1)
- Philippines (11)
- Philosophy (14)
- Phoenix (2)
- photo error (8)
- Photography (17)
- Physics (39)
- Pictures (28)
- Pictures of words (10)
- Pirates (3)
- Plants (7)
- Poetry (9)
- Poland (13)
- Police (19)
- Politics (250)
- Pop culture (10)
- Portland (184)
- Portugal (4)
- practice (1)
- Prehistoric Civilization (2)
- Pressure (1)
- pricing anomaly (3)
- Prime numbers (6)
- Printing (19)
- Prison (4)
- Propaganda (13)
- Property Rights (1)
- prosthetics (5)
- psych (61)
- Psychological Depression (6)
- psychology (173)
- Public Health (13)
- Puzzle Jigsaw (117)
- Puzzles (18)
- Pyramids (2)
- Qatar (10)
- Quantum (2)
- Questions (1)
- Racing (19)
- RADAR (20)
- Radio (14)
- Radio Astronomy (15)
- Railgun (3)
- rant (2)
- Rare Earths (1)
- Red Sea (6)
- Reentry (3)
- Religion (58)
- Remote Control (3)
- Restaurant (20)
- revelation (1)
- RF (25)
- Road trip (2)
- robots (34)
- rockets (87)
- rodeo (6)
- Roman WW2 (2)
- Romania (1)
- Rome (8)
- Royal court intrigue (6)
- Rube Goldberg (1)
- Russia (295)
- Rwanda (1)
- Sabotage (3)
- Sailboats (29)
- San Francisco 2002 (1)
- San Francisco 2008 (2)
- San Francisco 2010 (6)
- San Francisco 2015 (1)
- San Francisco 2017 (1)
- San Francisco 2023 (2)
- Sarcasm (6)
- Saudi Arabia (8)
- scams (12)
- School (3)
- Science (121)
- Science Fiction (169)
- Scotland (3)
- Scott Manley (8)
- Search & Rescue (12)
- Seattle (4)
- Security (68)
- sex (2)
- sgcollins (8)
- Ships (136)
- Ships - icebreaker (13)
- Shipwreck (17)
- show business (2)
- Sidecars (6)
- Singapore (4)
- Skycrane (6)
- Skyhook (1)
- Slavery (2)
- Sleep (1)
- Slovakia (3)
- Slovenia (1)
- Small ideas (1)
- Smart weapons (4)
- SmartPhone (16)
- snakes (4)
- Snipers (8)
- Society (253)
- Somalia (2)
- South Africa (6)
- South America (64)
- South Korea (7)
- Southeast Asia (6)
- Soyuz (3)
- Space exploration (239)
- Space Suit (11)
- SpaceX (45)
- Spain (37)
- speed records (1)
- Spiders (8)
- Spies (2)
- Sports (42)
- Spreadsheet antics (23)
- Sri Lanka (2)
- St. Petersburg (8)
- Star Wars (4)
- Statistics (7)
- Steam (17)
- Stevens (7)
- Stu (1)
- Stunts (4)
- Submarine (50)
- Submarine Cables (3)
- Suburban Life (202)
- Sudan (2)
- Sweden (9)
- Swimming (5)
- Switzerland (3)
- Swords & Sorcery (1)
- Syria (6)
- Tacky (1)
- Tactics (1)
- Taiwan (7)
- Talent (1)
- Talking Heads (4)
- Tanganyika (1)
- Tanzania (1)
- Technology (221)
- Telecommunications (41)
- terrorism (21)
- Testbed (3)
- Texas (29)
- Thailand (14)
- The future is stupid. (1)
- The Great Depression (8)
- The Ipcress File (3)
- The Knife Man (1)
- The Matrix (3)
- the nature of reality (2)
- The Rise of Phoenixes (2)
- The Terror (4)
- The Verge (7)
- The Wall (6)
- Theater (33)
- Thinking (6)
- This is just great (2)
- Thompson submachine gun (2)
- Thrillers (3)
- Time (4)
- Timeline (1)
- Tobacco (7)
- Toys (5)
- Train (75)
- Train art (8)
- Travel (31)
- Trucks (9)
- True Detective (5)
- Trump (1)
- Tungsten (1)
- tunnel (22)
- Turkey (41)
- TV (345)
- Twin Mustang (2)
- Typhoon (1)
- Uhtred (3)
- UK (70)
- Ukraine (74)
- Unbelievable (5)
- underwater (18)
- Uniberp (34)
- United Airlines (7)
- USA (16)
- Utah (9)
- Vacuum Tubes (7)
- Vehicle fire (5)
- Vehicles (2)
- Venezuela (16)
- Veritasium (2)
- video (1575)
- video error (2)
- video error (32)
- video short (14)
- Vietnam (20)
- Villains (1)
- Violence (1)
- Vision (33)
- Volcano (4)
- voodoo (1)
- Wales (2)
- War (71)
- War on Drugs (116)
- Washington (12)
- Waste Of Time (2)
- Watching the Detectives (151)
- Water (18)
- Water bomber (17)
- Water Heater (10)
- Weather (38)
- web stuff (10)
- welding (3)
- Wheels of Justice (8)
- Windmills (7)
- Wisconsin (1)
- Wise guys (1)
- Witch Medicine (9)
- Wondermark (3)
- Wood working (8)
- Words (544)
- Words of Wisdom (4)
- Work (29)
- Wristwatch (9)
- Writing (3)
- WW1 (26)
- WW2 (208)
- Wyoming (4)
- Yemen (6)
- YouTube Shorts (3)
- Yugoslavia (2)
- Zombies (5)
- π (10)
No comments:
Post a Comment