Is it okay to keep my AC turned on when I turn off my car, and then turn it on again?
IT IS A BAD PRACTICE IRRESPECTIVE OF THE KIND OR MAKE OF AUTOMOBILE.The power requirement of an air-conditioner is enormous. Electrical Load shouldn't be immediately applied to any automobile when turning it's engine on. It is just a good practise to abide by.There are ways to effectively turn off your AC.When you reached your destination, don’t just turn OFF the engine, because you’ll create a bit of a shock in the AC unit.Turn OFF the AC while the engine is running. You can start doing this even before reaching your destination. The car interior should be pretty cool now so you won’t break a sweat.After turning OFF the AC, keep the fan working at medium to high speed. Why? Do you know that puddle of water forming underneath you car after using the AC? Well, that’s coming from the evaporator. The unit is almost ice cold when hot air passes near it so condensation occurs on its fins, forming water droplets.The fan working while the AC is stopped will dry out the evaporator and its surroundings. This means moss and other damp-dark-places-loving bacteria won’t thrive there and you’ll be spared from foul smells and possible respiratory system diseases.Modern automobiles might have climate control. That doesn't help in the negative effect of turning off your engine without turning off your air conditioner.I hope this helps.
What do the knobs on my electric guitar do?
I presume you’re referring to the knobs on the BODY of the guitar and not elsewhere; I’m repeating the previous answers by pointing out their technically correct functions as represented on MOST guitars: volume and, possibly, tone.To be strict, the knobs actually don’t DO anything - you have to turn them and their effects are only apparent when the guitar is plugged into something and you can hear amplified output - either through speakers or headphones.Almost all guitars will have at least one VOL knob. Traditionally this is attributed to adjusting the VOLume of the guitar signal - the amount of signal going to the amplification system. You, the player, control it.What I mean by “Almost all guitars” is that, in some special cases, there are guitars without a volume - they’re “wired wide open” for specific purposes usually to do with studios.Most guitars will have at least one TONE knob - a way to adjust the frequency spread of the signal going to the amplification system. Similar to a TONE adjustment on radios, stereos, other things; it usually is a means to adjust how much of the higher frequencies are sent to the output. Rolling the knob “back” will reduce the higher frequencies and can help make the guitar sound less “shrill” if it exhibits that tendency.Here’s another way to look at these knobs:“VOL” has many practical definitions:VOLume of Annoyance - it’s a way to adjust how much an (involuntary?) audience is subjected to the sounds of your guitar. Dial it up, the more annoyed they are. Remember that you’re also a member of that audience.VOLuntary arrest: when the volume-of-annoyance has passed a sufficient threshold, authorities tend to show up and pass “friendly reminders” to you about the cost of said annoyance.“VOLuptuocity” - a whack term where, upon mastering the subtle effects of changing the volume, the resulting desired effect on the target of your playing - possibly a love interest.“TONE” is really mislabeled - “TON” might be more appropriate:TONs of shrillness - sometimes a really “trebly” guitar sounds cool. Most times it just makes people want to shoot you.TONal Annoyance - see number 1.TONight it’s on - manipulating the TONe knob along with the VOLume knob can assist with the VOLuptuocity intent.FInally, remember that your IMPACT is always greater than your INTENT.Use VOL and TON wisely.