So I’m sitting here at work unable to concentrate because I can’t fucking decide if the new Netflix show “Altered Carbon” is actually good. For the uninitiated it’s a neo-nior cyberpunk sci-fi series about a man named “Takeshi Kovacs” who is brought back to life 250 years after he died to help solve the murder/maybe suicide of one ultra-rich Laurens Bancroft.
Now of course it’s a little more complicated than that.
While I was drinking my coffee this morning the thought occurred to me: how much faster does my coffee cool with the spoon in it?
So I did a rough estimation with the following assumptions:
All cooling was done through natural convection following Newton’s Law of Cooling, with a convective heat transfer value of h=40 W/(m^2*K) and a bulk air temperature of 294 K (~70 F)
The thermal conductivity of the coffee mug and the spoon are that of ceramic (k=1.5 W/(m*K)) and stainless (k=16 W/(m*K)) respectively
The spoon has uniform temperature along it length equal to that of the bulk coffee
The coffee cup is a cylinder with height of 4 inches and a diameter of 3.5 inches
The spoon has a total length of 8 inches with heat transfer only occurring off the section of the handle emerging from the coffee
Coffee has the same heat capacity and density as water
Coffee is produced from the pot and poured into the cup at 355 K (~180 F)
No heat is lost through evaporation of the coffee
And here are the results:
Blue represents the standard coffee.
Yellow is the coffee with spoon.
Red horizontal is safe drinking temperature (333 K).
Purple Horizontal is air temperature.
What can be gathered is the coffee with spoon hits the safe drinking temperature almost a full 150 seconds (2.5 minutes) sooner than the standard coffee.
This is not a life changing amount of time saved but it’s 2.5 more minutes of WordPress everyday.
May 13, 2017
coffee, conduction, cooling, drink it, engineer, heat, Me, Pop Anal, PopAnal, transfer
There’s more to life than defense spending.
This amazing video was made by YouTube’s
It’s been a long time since I’ve posted but such is the life of an end year college senior.
Butterflies & Machineguns for all my stories
Twitch for all my game streams
steelmemesanddankbeams for daily funny pictures
daily_cute_dose for daily cute pictures
Facebook, Tumblr and Twitter for you to stay informed.
Patreon for me to make ends meet. Pledges start at just $2 a month.
Never stop creating,
I predict here and now that the “Nobody Expects the Spanish Inquisition” meme is about to go main stream.
January 14, 2017
BFabdMG, economy, expects, inquisition, investments, know your meme, memes, monty, nobody, predictions, python, spanish, urban dictionary, verbose
Nicotine by Ron See
“You’ve been a wonderful crowd. Thank you all and good night!”
December 19, 2016
160words, addiction, art, arts, BFandMG, cigarettes, image, minimal, photo, picture, PopAnal
You’re mom takes you to the candy store where she says you can pick out one thing. Your face lights up and you gleefully take off down the aisle. Now what should you get? Twizzlers, Sugar Bombs, Gummy Bars, Jaw Breakers, Sour Rings, Butterfingers?
December 18, 2016
BFandMG, choccy, Choccy Milk, chocolate, M&M, Mini M&M, personal, Pop Anal, Science, square-cube law, sweet, wordpress
You wake up. It’s a bright and early 8:27 on Saturday morning. A whole weekend of games, adventure and fun await you and your best friend. You jump out of bed in your ‘Action-Man’ PJ’s and run down stairs.
December 17, 2016
BFandMG, choccy, chocolate, chocolate milk, creative, creative writing, history, Jamaica, malt, meme, memes, milk, milkshake, personal, PopAnal, post-workout, Sir Hans Sloane, Sloane, wordpress