ProveISaidIt
ProveISaidIt t1_j2ew3y6 wrote
Reply to comment by epelle9 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
I took a look at the first law of thermodynamics. Way too complicated for a quick read. I wasn't a science major.
It talks about energy in a closed system. Isnt the microwave inputting additional energy while it is running?
If you don't mind educating me a bit by continuing the dialog. I find science fascinating. Sadly, I didn't get the science gene. My dad was a chemist, one brother a biochemist, the other brother was mechanically minded. Even my daughter and niece are in the sciences.
I read articles, watch videos and grasp at concepts.
ProveISaidIt t1_j2emh70 wrote
Reply to comment by epelle9 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
Trying to understand a concept isn't the and as arguing. Also, you may have lead with the major in physics.
As stated, I only draw from my experience. That is articles I've read and videos from SciShow and the like.
If I hold a metal rod with a metal pair of pliers and heat the far end of the rod, the piers will heat up from hear transfer.
That's about as far as my understanding of thermodynamics goes.
I have never heard of plates having resonant frequencies as microwaves. That, however, does not mean it's not true, only that I have more to learn.
ProveISaidIt t1_j2dvvkx wrote
Reply to comment by Fred2718 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
No one said something cool can transfer heat to something hot. Cold absorbs heat.
I said as the food warms from the microwaves that heat transfers into the plate. I don't know about ceramics containing metal elements or not.
I do know that Corning Corelle is made from dufferent types of glass, as explained in the link. I have been using Corelle in microwave ovens for almost 40 years and it does not get hot the way a stoneware dish does.
I can only speak from my own experience. If I want to preheat a Corelle plate I have to put water on it as the water transfers heat into it.
ProveISaidIt t1_j2dpc7e wrote
Reply to comment by epelle9 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
Microwave ovens work by causing the water molecules in the food to vibrate. That's how it heats food. You can look it up.
By your explanation a dry plate with no food on it would heat in a microwave.
From what I've always heard that would damage the microwave as there has to be water to absorb the microwave energy.
ProveISaidIt t1_j2cgg3m wrote
Reply to I got a 2023 sarcasm calendar for Christmas by mdh_4783
DILIGAF/s
ProveISaidIt t1_j2ccbhp wrote
Reply to comment by Fred2718 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
I just figured out what you meant. That makes sense. I do know that when I heat food on a Corelle plate I can take the plate from the microwave and it does not burn my hand. The food is hot and I can eat from the same plate.
When using the stoneware the plate is too hot to handle but the food is not up to temperature.
I had assumed it was drawing heat solely from the food. I have always heard you cannot put a dry plate into a microwave because there needs to be water to absorb the energy.
ProveISaidIt t1_j2cbpym wrote
Reply to comment by th3r3dp3n in eli5 Why is being barefoot unsanitary? by GoodLittleTerrorist
God help you if they do. Breaks onto thousands of shards. It's like sand coming from the beach.
We've broken enough over the 30 years in the house we will NEVER get all of the shards out of the house.
Under the stove, the refrigerator, behind the toaster, in that ugly vase you got from that one aunt as wedding present still in the box (how the heck did a shard of Corelle even get in that box?)
I got a piece stuck in my foot two years ago it took three weeks to get it out.
ProveISaidIt t1_j2caqkp wrote
Reply to comment by th3r3dp3n in eli5 Why is being barefoot unsanitary? by GoodLittleTerrorist
I do. Corning Corelle dishware is made from a type of glass, not porcelain or clay as is China or stoneware.
As mentioned in my post, my family has used it since its introduction in the early 1970. Here is a website that describes it.
Glass science at the holiday dinner table: How Corelle dishes are made - The American Ceramic Society https://ceramics.org/ceramic-tech-today/glass-science-at-the-holiday-dinner-table-how-corelle-dishes-are-made#:~:text=Corelle%20dishes%20are%20made%20of,three%20thermally%2Dbonded%20glass%20layers.
ProveISaidIt t1_j2c9rxx wrote
Reply to comment by Fred2718 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
Which part? Microwaves heat food by causing the water molecules to vibrate.
An ice cube cools your drink by absorbing the heat from the beverage. Likewise, the plate being colder, absorbs the heat from the food that is generated by the vibrating water molecules.
ProveISaidIt t1_j2c5l6k wrote
Reply to comment by Jf2611 in ELI5 How do companies make money by selling products at a low price and competing with other companies? by [deleted]
The other thing to consider is loss leaders. They may take a small loss on say a desktop computer, but they are counting on selling you a monitor, maybe you upgrade to a wireless mouse and back-lit wireless keyboard. They make money on those.
Sticking with the laptop example your going to want a cooling pad, a carrying case, an external hard drive to back it up. Even if you don't think you want those a good salesman will convince you that you do. You also need an extended warranty, maybe you want in home service for 3 years for an additional $500 (yes, oddly specific. I received a Dell laptop for my birthday with 3 year in-home service).
ProveISaidIt t1_j2c47gn wrote
You could have micro-tears in your skin that will alow dirt, germs, bacteria and other pathogens entry into your system.
Athlete's foot is a fungus. Walking barefoot either allows you to get the fungus on your feet or spread it if you already have it.
Then there are the other hazards, broken glass, nails, sharp or hard items.
I got a shard of glass in my foot from a broken plate. It would move in and out of my foot. It took 3 weeks to finally get it removed.
ProveISaidIt t1_j2bzkjs wrote
Reply to comment by Rogue_Like in ELI5: Why do mental health patients get grippy socks? by Careful-Day7125
I had surgery recently and I kept my grippy socks.
I don't imagine they would be comfortable inside of shoes, but I don't wear shoes on the house.
ProveISaidIt t1_j2bxnpl wrote
Reply to comment by jerrycotton in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
LOL. No. My folks bought Corelle in the 70s when it was first introduced. When I got married I bought it for my household. So I guess that after almost 50 years that kind of makes me an expert.
ProveISaidIt t1_j2bwnfi wrote
Reply to ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
Microwaves heat food by causing the water molecules in the food to become excited, thus banging into each other. That creates friction, which creates heat.
Objects heat up through the input of energy. Heat doesn't absorb cold, rather cold absorbs heat. Plates are typically made of some kind of stoneware, e.g. ceramic, which is clay.
Side note: Corelle dishes manufactured by Corning are glass and do not heat up on the microwave. I use Corelle for this reason.
The cold stoneware absorbs heat energy from the food. Because the food is losing heat to the plate it remains cooler. The water molecules continue to produce heat through friction that the plate continues to absorb.
I would imagine if the food were heated long enough to the point all of the water had evaporated the plate and the food would reach equilibrium. However, the food would long since become inedible if not combusted.
ProveISaidIt t1_izr7hgh wrote
I got one last week too. What a waste of plastic.
ProveISaidIt t1_iybayle wrote
Reply to Huh? by KoolAidGuy_541
I want a bird dog
ProveISaidIt t1_iuizhjn wrote
Reply to Domino's vegan pizza in Spain by ejbackhaus
And that's why Domnio's new pizza rhymes with fun.
ProveISaidIt t1_j2fuy7h wrote
Reply to comment by epelle9 in ELI5: Why plates get too hot to touch in the mircrowave but the food can still be cold? by jerrycotton
Thank you. I had heard microwave was discovered because it melted a chocolate bar in some guys pocket. I knew that you can use them to ionize the gas in florescent tubes and freak out the Boatswains Mates or so I'd heard. I was in the US Navy Reserve for a spell.
I didn't know things like dishware would heat up on its own. We got our first microwave 40 years ago as mentioned. The warning was always never to run the oven without something moist to absorb the energy. So I've never put just a plate in.