I am driving the 2.5 hour drive to be with my bf on his birthday, i will show up the night before which is tuesday, i have plans wednesday during the day and he will be home that night. now he lives with people so i decided that a picnic in the park would be nice. however it will be dark around 7pm. so i was thinking there are fire pits there i will bring wood and a blanket. but what do i pack because it will be dark and i dont have a place to make anything. so here is what i was thinking let me know. Pick him up and take him to a restaurant for supper, then head down to the park where we can go for a walk, then make a small fire, have a glass of champagne, i can make some chocolate covered strawberries, or smores because we'll be by the fire. then go back to his house and .. So what do you think, what would you change, add or take away. i want this to be special.
yes, this is fairly easy. First, the alarm switches are wired in a LOOP. You can use a pair of wire run to each switch and back to the controller where they are connected as a loop. Open the loop, the alarm sounds. OK so far so good. Next, you need a controller that takes a normally CLOSED switch to cause an alarm when opened. This is reverse logic. You can build a reverse logic device using a hand full of transistors or one IC. The IC would have to be a NAND gate. where if on the nand gate, any input would be a HIGH unless both inputs were HIGH. Thats the basics. The rest is up to you.
You don't say how old you are. Assuming you haven't finished high school yet you'll need to do that first and get good grades/SAT scores. Then find a school with a good undergraduate chemistry program. Don't necessarily jump into the Ivy League school. There are plenty of good schools around. Then ace the books and get ready for graduate school. Good luck
