More likely the fan is losing its grip on the air because of a clogged up coil or a dirty filter. When the fan is struggling so hard to pull air through the coil, it causes a partial vacuum and suddenly slips to a higher, free-running RPM. The vacuum disappears and the fan gets a grip on the air again, slowing its speed.

Another way to put this is, What kind of air conditioner do you have that 2 fans are close enough to each other to have a beat frequency? I've never seen that.

 

One word: acclimatization

When I grew up in Indianapolis, we thought summers near 80 F were brutal. Later, I went from Florida to California. At the first sign of getting warm, my body would respond with the drenching sweat that is Florida summers. The dry air would hit me at a dew point of about 59 F and I would get chills and start sneezing. I had to wear a trench coat when I was outdoors most of the time for the first year to avoid the dry breezes. Then I got used to it. California dry is good! A few years later, I moved back to Florida and my body adapted to Florida.

I still think drenching sweat is a bad thing, and it gets annoying in the summer, but I'd rather sweat in the summer than have cold, wet, shoes and conditions that make it impossible to work outdoors for several months of the year. (I can't understand why people live in Canada.) Now, my body thinks 70 F is a bit chilly, 80 F is pleasant, and 90 F is where I start sweating if I do any outdoor activity except holding still.

Remember Indianapolis, where 80 was brutal heat? In Florida, 80 is just about warm enough to be comfortable. You get acclimatized.

ps to metalmann: You can have the spot I left open in Indiana

Certainly acclimatization helps and moves the needle, but only within limits.

I've never been to Indianapolis, but I've worked with a number of people from there and they all indicated that it was very humid. I just looked on line at

http://weatherspark.com/averages/30595/Indianapolis-United-States

and found this: "The relative humidity typically ranges from 46% (comfortable) to 93% (very humid) over the course of the year, rarely dropping below 28% (dry) and reaching as high as 100% (very humid)," and "Over the course of a year, the dew point typically varies from 13°F (dry) to 70°F (muggy) and is rarely below -6°F (dry) or above 76°F (very muggy). "

In comparison, this is what they said abouit Denver: "The relative humidity typically ranges from 22% (dry) to 82% (humid) over the course of the year, rarely dropping below 10% (very dry) and reaching as high as 99% (very humid)," and "Over the course of a year, the dew point typically varies from 8°F (dry) to 56°F (comfortable) and is rarely below -4°F (dry) or above 62°F (mildy humid)." One thing that helps the Denver region is that the difference between daytime and nightime temperatures are almost always about 30°F, and so the hot time of the day corresponds to the very low relative humidity and the higher humidities are usually associated with the overnight lows.

By way of comparison to where I was stationed in the Florida panhandle: "The relative humidity typically ranges from 52% (mildly humid) to 93% (very humid) over the course of the year, rarely dropping below 28% (dry) and reaching as high as 100% (very humid)," and "Over the course of a year, the dew point typically varies from 36°F (dry) to 78°F (oppressive) and is rarely below 17°F (dry) or above 81°F (very oppressive)." Furthermore, the swing in daytime temperatures is only about 15°F, which makes the summer nights almost as miserable as the days.

Growing up in Colorado wearing glasses, I was used to only having my glasses fog up if I came inside from the very cold outside into a warm room. It was a culture shock for me when I got to Florida and my glasses fogged up upon going outside, even in the middle of the night.

 

#12 and joeyd999 should hook up for a couple beers, get drunk and talk about people in AAC... as they live close by...

 

#12 and joeyd999 should hook up for a couple beers, get drunk and talk about people in AAC... as they live close by...

In the last 24 hours, I have exchanged more PM's with joeyd999 than I have with any other member...except maybe strantor or the moderators.

Agreeing with WBahn...if you think it's humid in Florida, try standing in a corn field in Indiana. There is no wind below the tops of the corn and every plant is transpiring water into the air around you. It's a wonder corn doesn't suffer from fungus, just because of the way it grows!

and, yes, my glasses fog up when I go outside in the summer, day OR night

ps, we're a few hundred miles apart. Tampa to Miami.

 

#12 and joeyd999 should ... talk about people in AAC

We'd have lots to talk about, but the people on AAC would probably be low on the list...

 

Point in fact: enough information for a dozen PM's was exchanged between me and joeyd, and not one AAC member was mentioned.

 

Point in fact: enough information for a dozen PM's was exchanged between me and joeyd, and not one AAC member was mentioned.

I know. Was just saying... but that would be fun tho...

 

#12 and joeyd999 should hook up for a couple beers, get drunk and talk about people in AAC... as they live close by...

I seem to say this every day at least once to a European co-worker...

Just because we have a sales person working in the same state as some customer's factory, doesn't mean our sales person can hop on the Metro and meet the customer for tea this afternoon.

Miami, FL to Tampa! FL is like Paris to Rotterdam.

You might also want to look up some distances like,
Los Angeles, CA to San Francisco, CA
Pittsburgh, PA to Philadelphia, PA
Dallas, TX to San Antonio, TX
New York, NY to Buffalo, NY.

 

...if you think it's humid in Florida, try standing in a corn field in Indiana. There is no wind below the tops of the corn and every plant is transpiring water into the air around you. It's a wonder corn doesn't suffer from fungus, just because of the way it grows!

Fungus is a huge problem in modern farming. Fungicides were originally reserved for fruits trees and tomatoe plants but now it is used on everything including lawn turf (the most heavily fertilized, insecticide and herbicide treated 'crop' in the United States).

 

Back to living in Florida. I've been here for almost 9 months now. From the time I arrived in mid-November until sometime in June, the weather was fantastic. In June, it rained every stinking day. Then in July, the rain really picked up. Despite that, I've found opportunity to go to the coast, paddle along the St. Johns river and visit several of the 2,000+ lakes in central Fl., and even attended a rocket launch at NASA. Oh yeah, and there are the natural springs, Blue Springs, Rock Springs and Wikiva Springs, and the Wikivi river run. Lots of watery things to do. I would recommend the Atlantic side of Florida. We get nice, cool ocean breezes that I never go on any of my trips to the Fl. Gulf coast.

The other thing about Fl is all the wildlife. I see deer every day in my park. I see birds that are damn near as big as I am. I see all kinds of fish, turtles, crustacean, alligator and manatee. Somethig every day.

#12 is right about being a perpetual vacation. I work 10 hours/day, but still find time to vacation. Cool thing is, every other weekend is a 3-day weekend, and I take full advantage of it. I'm bringing my wife down in a couple weeks, for her year long Florida vacation

 

I seem to say this every day at least once to a European co-worker...

Just because we have a sales person working in the same state as some customer's factory, doesn't mean our sales person can hop on the Metro and meet the customer for tea this afternoon.

Miami, FL to Tampa! FL is like Paris to Rotterdam.
....

Agreed! but you can tell when some people have some common interests or look up to each other and I saw that connection between the two in a few posts and I was right as #12 mentioned they been hooking up in the *AAC PM room* and had tea...

 

you can tell when some people have some common interests or look up to each other and I saw that connection between the two in a few posts

I don't know how you saw that, but it turned out to be true. Joeyd and I have a LOT in common. He's better than I am with micros and I'm better than him at some other stuff, but we overlap a lot.