"Tell me, Doctor, where are we going this time?" "Is this the '50s" "Or 1999?" "All I wanted to do" "Was play my guitar and sing" "So take me away I don't mind" "But you better promise me I'll be back in time" "Gotta get back in time" "I'll be back in time" "Gotta get back in time" "Begin transmission, Doctor Brown." "Oh, darn!" "Sorry about that." "Dr. Emmett L. Brown, here." "It is my hope to chronicle, through audio-visual means, my research involving air pressure and water pressure." "Why is pressure so important, you ask?" "Because it is a basic scientific principal." "It wasn't too long ago that even the simplest scientific principles, were seen as magic, not science." "Why, in Salem, Massachusetts, in the 1600s, many innocent people were accused of practicing black magic." "If I had been carrying on these sorts of experiments back then," "I might have been accused of being a witch, and then burned at the stake!" "Ah!" "That's not how I wanna end up." "Well done!" "But during the Salem witch trials, anything could happen." "Marty and I found that out the hard way." "It all started when Marty was having a bad day at school." "A C-minus on my music appreciation test!" "Can you believe that, Liz?" "And you even did an extra credit report on the social significance of the Bone Daddies." "Whoa, ho, ho." "Yes!" "No!" "What's Jennifer doing with that dim-bulb, Kelp?" "I hear they've got a date, this Saturday." "That muscle-bound moron?" "Of course, this means you're free to take me out." "Should I consider that a yes?" "Then maybe afterwards, you can watch me lift my car." "Hey, lay off her, Kelp, or I'll, I'll, I'll cut you down to size." "Whose size, McFly?" "Yours or a normal person's?" "Ha, ha, ha, ha, ha, ha, ha." "I'll see you Saturday, Jennifer." "Martin Shamus McFly..." "Jen, I can't believe you'd sneak out behind my back." "Just listen a minute..." "No excuses!" "I don't ever want you to see that jock again!" "This isn't fair." "You've found me guilty without even hearing my side of the story." "Okay, fine, huh!" "Tell me your side of the story, and then I'll find you guilty." "Marty, dry up!" "Whoa!" "Very mature, Jennifer!" "Hold it, hold it!" "I inadvertently neglected to mention, what was transpiring with the Brown family unit!" "Meanwhile, about 3000 years earlier..." "Gee, Dad, what did those guys get so mad about?" "Vernie, I speculate the ancient Egyptians don't have much of a sense of humor, especially with their national monuments!" "Where'd you get that much plasto-plaster, anyway?" "There's the train!" "Hurry, Emmett!" "Ready for departure, Jules!" "Destination, Hill Valley." "Prepare for temporal displacement!" "Throw the spear!" "Great Scott!" "The flux capacitor!" "Exciting, isn't it?" "Now, to get back to Marty." "This has gotta be the worst day of my life." "First, old buzzard Babcock gives me a C-minus in Music Appreciation, which brings my average to a..." "C-minus." "Then Jennifer makes a date with some pituitary case." "Hi, Julie." "Hi, Marty." "Maybe Doc can give me some advice before things get any worse." "Hey, hey!" "I just had a bath last month!" "Doc and the gang aren't back yet?" "Whoa!" "Whoa!" "Whoa!" "Whoa!" "Good thing we skipped the flea dip." "Greetings from Massachusetts." "Hey, it's one of Doc's scratch and listen, postcards." "Marty, locomotive crash-landed in Salem." "Bring DeLorean and spare flux capacitor, to September 23rd, 1692, at once!" "Okay Einie, we'll take off right after I comb my hair." "I said at once!" "September 23rd, 1692." "According to this map, there should be a large body of water right about..." "Back to the facts!" "Costing only one cent, the very first postcard in the United States was mailed on July 1st, 1898, and should arrive at its destination, any day now." "Ha, ha!" "We're trapped like rats!" "The air is getting thin!" "I, I, I can't breathe I tell ya!" "We're doomed!" "Thanks, Einie." "Uh, not that I was ever really worried, but, I, I do feel much safer on dry land." "At Least I did!" "Hey, no brakes!" "Whoa!" "Whoa!" "Ah!" "This thing is driving itself!" "Welcome to Salem, Massachusetts!" "I had you on auto-remote." "How was the ride?" "Great, if you wanna see what I had for lunch." "Oh, thanks for bringing the spare capacitor." "Triple-A doesn't cover this." "Okay, first I need to wire in the new flux, adjust the tolerances." "Oh, yes!" "Can't forget to recalibrate the surge protector." "I figure, the whole process will take approximately..." "This is just an estimate... 27.35 hours." "Not including the 46.8, two minutes travel time, to our house in town, where you can freshen up." "Doc, what's everybody staring at?" "I, I mean, I know I'm dressed like a geek, but..." "Marty, in this society, everyone dresses like a geek." "The puritans are suspicious of strangers, that's all." "But once they get to know you..." "They treat you even worse!" "What's he in for?" "He assaulted my ears with vile speech when I ran over his hog." "Boy, that's strict." "The puritans just have very high standards of behavior, that's all." "Uh, what's she wearing that "S" for?" "She was caught stealing at the general store." "That guy made a glutton of himself at the town social." "And what about that one?" "He fell asleep in church." "Yeah, brothers and sisters, witches are plentiful in the land." "You shall know them by their speaking of strange tongues, and by their convulsive fits." "With instruments of Hades do they make Satan's music, and with dogs and other dumb beasts, do they converse." "Hey, don't forget, they use broomsticks, too." "Ahhh!" "Doc, did you hear that?" "They actually believe in witches!" "Inform me of something of which I am not already cognizant." "After all, we've been here a month." "A month?" "Cannibalizing the damaged flux capacitor and constructing the time-traveling mail truck, took a bit of doing." "Goodman Brown?" "Yes, Goodman Tannen." "Oh, not another Biffster!" "Once again you have neglected to retrieve and dispose of my refuse barrels." "My apologies." "I'll collect them now with the help of Martin, my, uh, nephew." "Doc, you're a garbage man?" "A fascinating way to explore the puritan culture." "In addition, I've started a recycling program." "Whoa!" "Oh, no!" "By heavens above, I'll get ye for this, wretched and despicable stranger!" "Well, at least he didn't call me a butthead." "Where's your father?" "We're gonna be late for the town social." "I hope there's something fun to do this time." "Last week, all we did was play stack the hymnals." "And thanks to simple geometric logic, I won." "Golden, viscid fluid, produced by members of the genus Apis mellifera," "I'm home!" "Oh, Emmett, I love it when you call me, honey." "Hi, Marty." "Welcome to the 17th century, Martin." "The puritan work ethic is fascinating to contemplate." "Yeah, a real blast." "Hey, Marty, are you coming to the party tonight?" "What party?" "A weekly, ritualized occasion amongst puritans." "Personally, I have to repair the locomotive, but you all attend and have fun." "You call this fun?" "Who died?" "Now, Marty, people around here just like their fun on the quiet side." "Maybe I'll go see what Jules and Verne are up to." "I know!" "Let us play, seen and not heard." "How do you play it?" "We see who can stand still and be quiet the longest." "With my knowledge of the laws of inertia, I'm a shoe-in." "I'd rather stack books." "Drag." "Hello, stranger." "My name is Mercy." "Oh, baby, have mercy, ow!" "Notice the stranger." "I've not seen anyone jump about in such fits, since Goody Magoo, and you know what we did to her." "And her cat." "Are you all right?" "Oh, now that you're here, I'm so fine!" "Just call me, Marty." "Would you care to take a stroll in the moonlight, Marty?" "Oh, ho, ho, get outta town!" "Are you kiddin'?" "You bet!" "Is that a yes or a no?" "And let me warn you, I don't take kindly to men who say no." "Oh, It's a..." "What's the matter?" "Oh, that big goon over there is mad at me." "He's such a chump." "Oh, that's no chump." "That's my father." "Eh-heh, in that case, my answer's no." "I, I better, uh..." "Go walk my dog." "Bye." "Walk out on me, whilst thou?" "What did that young stranger want with you, daughter?" "He..." "He made improper advances toward me, Father." "What?" "Not only that, but he spoke in strange tongues, and is subject to fits!" "I knew there was something odd about that boy." "Einie, this just hasn't been my day, girl-wise." "Yeah, I know that one." "Timely request, considering I've got a right to play the blues." "Why, tis like the wailing of lost souls in Hades itself!" "Is he a witch?" "Uh, hi, big guy." "How'd you like it?" "Throw him in the stockade!" "Let's not get carried away!" "Okay, okay!" "I could use some lessons." "Yeah, he's a witch!" "He's a witch!" "Witch!" "Witch!" "Witch!" "Great Scott!" "Witch!" "Back to the facts!" "In 1692, during the genuine Salem witch trials, two dogs were actually accused of being witches." "Believe it or not, the pooches were found guilty!" "Psst, Marty!" "Doc?" "I have come to liberate you from your current state of incarceration." "Ah, shoot, I thought you were gonna bust me outta here." "The Salem witch trials were infamous for railroading innocent people." "If you're found guilty, things could get very messy." "But, Doc, I'm not a witch." "What can they possibly say about me?" "You'll, uh, find out at tomorrow's trial." "The nephew Martin, a poor and miserable object, has been known to carry himself in an unwanted manner and bursts forth into sudden shrieks and fits." "With his black magic, the scoundrel levitated a barrel of refuse, dumped its contents on my head, then, bewitched my horse." "He communicates with beasts of the field, with a musical, satanic mouth box" "I object!" "It's called a harmonica, lady." "The nephew Martin, made brazen overtures and attempted to enchant me by speaking in a strange and evil tongue and doing the devil's dance!" "Hey, that was one of James Brown's best moves!" "Seeing that I was immune to his evil schemes, he began having discourse with his dog!" "Discourse?" "I was just talking with him!" "Isn't that right, Einstein?" "Discourse means talking?" "Oh, I, I didn't know that." "Ooh!" "That dog is his familiar!" "He's signed the book of Hades, I tell you!" "He's a witch!" "Ha!" "Look who's talking!" "This intruder is an evil element in our community." "We must put an end to his demonic behavior at once." "We find the nephew, Martin, guilty on all counts of witchery." "Oh, no!" "But you've found me guilty without hearing my side of the story!" "So what?" "Whoa." "Where have I heard that before?" "Nephew Martin, you are hereby sentenced to the final test." "Just as long as there's no math involved." "Oh, no, no math." "We merely drop you in the bay." "If you float, you're indeed a witch and must be burned at the stake." "However, if you sink...." "I'm dead!" "That's your problem, fanny-face." "Not the water test!" "I was hoping to have the locomotive repaired before the trial was over!" "Final adjustments are complete, Father!" "What would Thomas Alva Edison say, in a predicament such as this?" "How about, "Give me some large milk cans, a bellows..." ""And a length of rubber tubing!"" "You people are making a serious mistake." "Don't you see how you've all been caught up in the fervor of rumors and vicious gossip?" "He may survive the water test." "Of course, if he does..." "They're planning a weenie roast, and I'm the guest weenie." "Well, Marty, I suppose they won't be happy until they do their little test." "Come along, Verne." "Clara!" "Verne!" "Einie!" "Prepare to reveal your true self, nephew Martin." "If that is your real name." "He's getting awful wet there." "Yeah, the lad was innocent." "I..." "I only wanted to teach him a lesson for spurning my affections." "Friends, we must see that a travesty such as this never happens again." "Now to patch things up with Jennifer!" "I can't believe you got so mad about a little tutoring session." "Believe me, I know now that" "I should've given you a chance to explain." "Well, you're forgiven." "Marty, you know I would never go out behind your back." "What kind of a witch do you think I am?" "Auto-iris activated." "Adjusting exposure." "Doctor Emmett L. Brown again." "How about that Salem water test?" "Got things all wet." "Now, I have a little water test of my own to show you." "Since we're in a real pressure situation, perhaps this might help." "Access video encyclopedia, section "W" for water pressure." "Section "W"..." "Entry, water pressure." "The deeper you go under water, the stronger the water pressure." "You probably felt it on your ears when you dive into the deep end of a swimming pool." "That's because the deeper you are, the more water there is, squeezing all around you." "Watch, we'll prove it." "This Plexiglas pipe is entirely filled with water." "Here we have two balloons that are inflated to the same size." "One is located near the bottom, the other is placed near the top, about five inches from the surface." "Both are fitted with valves so that their air may be released into the column of water." "Watch how water pressure affects the flow of air from the balloons." "The top balloon deflates easily because there is relatively little water pressure acting against it." "Now observe the bottom balloon." "Here, the water is forced into the balloon because the pressure at that depth is far greater than the force of the outgoing air." "Here's another example." "One that can be re-created in the average dwelling." "All you need is an empty soda bottle and some water, put three evenly spaced holes in the side of the bottle and cover them with tape." "After filling the bottle with water, quickly remove the tape and watch the streams that shoot out." "The water merely trickles out of the top hole, but as we move downward the pressure increases and so does the force of the spray." "Impressed?" "Well, observe this!" "Now that's water pressure!" "Postscript to experiment..." "You may want to conduct your water pressure demonstration outside." "See you in the future!" "Speaking of air pressure, tune in to our next show, or I'll deflate your head!" "Wha..."