They can include features such as siren sounds or recorded messages. Megaphones, on the other hand, are purely acoustic, utilizing a cone shape to amplify the voice without any electronic assistance. This makes them simpler and often more portable. 5 While bullhorns require batteries or another...
Using this basic concept, you can create all sorts of alarm systems. Just imagine what a burglar might do to break into a house, and then turn that action into the circuit switch. For example, an intruder might break through a window, so you could make the glass itself a circuit. The ...
A computer control unit that monitors everything and sounds the alarm — the "brain" of the system The brain in most advanced systems is actually a small computer. The brain's job is to close the switches that activate alarm devices — your horn, headlights or an installed siren — when ...
The pitch of a sound refers to the sensation that decides whether the sound is sharp, or flat. High pitched sounds are sharp and shrill. Example a cry of a baby, or a whistle. Low pitched sounds are flat. Example: THe sound of a drum, bass, etc.Answer and Explanation: The p...
So, we filled out next year’s elective forms and will see where the schedule allows John. There’s a lot I don’t know, but I do know that these last two years will important opportunities for John to earn experiences. The LEA knows we work hard on interventions in our non-school ...
Set (a boat) in motion by pushing it or allowing it to roll into the water The town's lifeboat was launched to rescue the fishermen Run To retreat rapidly; flee When they heard the police siren, they ran. Launch Start or set in motion (an activity or enterprise) The government is to...
At home in my little town in Connecticut, it’s different. The faraway high sound of a police car, an ambulance or a fire siren brings me to my feet if I’m sitting and brings me to the window if I’m in bed. It’s the quietest sounds that catch our attention most easily, not...
Like in the case of the statement “not all smokers get cancer,” the exceptions to the rule do not necessarily make the rule untrue. Smoking, for all intents and purposes, will give you cancer. But metal is a different theoretical beast. Metal, despite all signs to the contrary, is ...
the sounds of the half full piazza fell way. Time melted around her and she could hear the heart of Rome beating in her ears. Feel it within her body pulsating in time with her own heart. The spirits of two thousand or more years past though her in the blink of an eye. She knew ...
What can’t Geddy Lee do? The Rush mainman is not only responsible for laying down some of prog’s busiest bass licks, but some of the most ear-shattering high notes and daunting delivery. Additionally, he triggers samples and plays the synthesizer live all while locking down the other tw...