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Culture

Maps of USA 🌎

Ref: USA Basemaps -- AlabamaMaps

State Capitals

Major U.S. Cities

Hero of History 🗽

O say does that star-spangled banner yet wave

O'er the land of the free and the home of the brave?

Martin Luther King, Jr.

We have a great dream. It started way back in 1776, and God grant that America will be true to her dream.

Dwight D. Eisenhower

Whatever America hopes to bring to pass in the world must first happen in the heart of America.

UTC ⌚

实时查看时间：TIME.IS

UTC（Coordinated Universal Time，协调世界时）是全球时间标准，所有的时区时间都是基于它来定义的。UTC时间不受任何地区的地理或政治因素影响，是一种不随季节变化的时间标准。

UTC基于原子钟的精确计时，与地球的旋转时间（即世界时，UT）尽可能地保持一致。UTC是国际上通用的时间标准，常用于航空、航天、通信和网络同步等领域。

时区是基于UTC的，比如：

  • 北京时间（China Standard Time, CST）是UTC+8，表示比UTC时间早8小时。
  • 纽约的东部标准时间（Eastern Standard Time, EST）是UTC-5，表示比UTC时间晚5小时。

Abstract

北美东部时区的标准时间通常适用于秋冬季节。为更好地利用日照时间，春夏时节会采用夏令时（Daylight Saving Time，DST），时间会调早一小时，变为UTC-4。

Systems of Measurement ⚖️

Measurement Imperial Unit Metric Unit
Length inch, foot, yard, mile centimeter, meter, kilometer
Weight ounce, pound, ton gram, kilogram
Volume fluid ounce, pint, quart, gallon liter, milliliter
Temperature Fahrenheit Celsius, Kelvin

转换方法

  • 1 foot = 12 inches
  • 1 yard = 3 feet = 36 inches
  • 1 mile = 5280 feet

  • 1 inch = 2.54 cm
  • 1 foot = 30.48 cm
  • 1 mile = 5280 feet = 1.609 km
  • 1 pound = 16 ounces
  • 1 ton = 2000 pounds ('short ton', U.S.ton=2000 lbs.As for 'long ton', British ton=2240 lbs)

  • 1 ounce = 28.3495 g
  • 1 pound = 453.592 g
  • 1 ton = 907.185 kg (1 long ton = 2240 lbs = 1016 kg)
  • 1 pint = 16 fluid ounce
  • 1 quart = 2 pint
  • 1 gallon = 4 quart

  • 1 fluid ounce = 29.5735 mL
  • 1 pint = 473.176 mL
  • 1 quart = 946.353 mL
  • 1 gallon = 3.78541 L

F --> C : (°F - 32) × 5/9 = °C

C --> K : °C + 273.15

Partisan Strife 🦅

left-wing right-wing
the political left the political right
the Democratic Party the Republican Party
liberal conservative
symbol is a donkey symbol is an elephant
Kamala Harris; Joe Biden Donald Trump; JD Vance