Branch Education | Why are Smoke Detectors Radioactive? And How do Smoke Detectors Work? @BranchEducation | Uploaded 1 year ago | Updated 3 hours ago
Check out https://www.pcbway.com/ for all kinds of PCBs, easy ordering, and quick delivery.
Take a look at their PCB Assembly, for an inexpensive population of the components on your PCBs.
You probably have a few smoke detectors throughout your house, but did you know that many designs of smoke detectors are radioactive? Well in this video we explore how smoke detectors work, and how they use the radioactive isotope Americium-241 to detect smoke. We'll also explore how Geiger counters work, and then how atoms of high atomic numbers are counterintuitively small. Smoke detectors are perfectly safe, and save lives. So make sure that they work on a regular basis.
Do you want to support in-depth engineering and technology education? Support us on: https://www.patreon.com/brancheducation
Website: www.branch.education
On Facebook: https://www.facebook.com/BranchEducation/
On Twitter: https://twitter.com/TeddyTablante
On Insta: https://www.instagram.com/brancheducation/
Table of Contents:
00:00 - Introduction to Smoke Detectors.
00:42 - Components inside a Smoke Detector.
02:26 - How does a radioactive isotope detect smoke?
07:24 - What are the types of radiation?
08:42 - Why is Americium radioactive?
10:05 - How is Americium produced.
11:00 - Other types of smoke detectors.
12:00 - Notes on Smoke Detectors.
13:03 - PCBWay Sponsorship.
14:30 - The Counterintuitive size of atoms.
17:08 - How do Geiger Counters Work?
Key Branches from this video are: How does a Computer Mouse Work?
Erratum:
at 9min15sec - We talked about the strong nuclear force holding together the nucleus, which is accurate. However radioactive decay is a result of the weak nuclear force, which wasn't mentioned.
Note:
We recommend not taking apart the inside of a smoke detector. It is such a small amount of Americium, but if mishandled it can result in illness.
Animation: Mike Radjabov
Script, Modeling: Teddy Tablante
Twitter: @teddytablante
Modeling: Prakash Kakadiya
Voice Over: Phil Lee
Sound Design: Luis Huesca
Animation built using Blender 3.2 https://www.blender.org/
Image Credit:
Cloud Chamber of Am-241 - Kebukawan on commons.wikimedia.org.
References:
Background on Smoke Detectors https://www.nrc.gov/reading-rm/doc-collections/fact-sheets/smoke-detectors.html
How do Smoke Detectors Work? https://home.howstuffworks.com/home-improvement/household-safety/smoke.htm
Ionization Detectors https://circuitcellar.com/wp-content/uploads/2012/06/CC2011110601.pdf
Ionization vs Photoelectric https://www.nfpa.org/Public-Education/Staying-safe/Safety-equipment/Smoke-alarms/Ionization-vs-photoelectric
Smoke Detector Circuit https://www.electroschematics.com/smoke-detector-circuit/
Wikipedia contributors. "Alpha Particle". "Americium-241". "Cloud Chamber". "Radioactive Decay". "Smoke Detector" Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited September 2022
#SmokeDetector #Radioactive #HowStuffWorks
Check out https://www.pcbway.com/ for all kinds of PCBs, easy ordering, and quick delivery.
Take a look at their PCB Assembly, for an inexpensive population of the components on your PCBs.
You probably have a few smoke detectors throughout your house, but did you know that many designs of smoke detectors are radioactive? Well in this video we explore how smoke detectors work, and how they use the radioactive isotope Americium-241 to detect smoke. We'll also explore how Geiger counters work, and then how atoms of high atomic numbers are counterintuitively small. Smoke detectors are perfectly safe, and save lives. So make sure that they work on a regular basis.
Do you want to support in-depth engineering and technology education? Support us on: https://www.patreon.com/brancheducation
Website: www.branch.education
On Facebook: https://www.facebook.com/BranchEducation/
On Twitter: https://twitter.com/TeddyTablante
On Insta: https://www.instagram.com/brancheducation/
Table of Contents:
00:00 - Introduction to Smoke Detectors.
00:42 - Components inside a Smoke Detector.
02:26 - How does a radioactive isotope detect smoke?
07:24 - What are the types of radiation?
08:42 - Why is Americium radioactive?
10:05 - How is Americium produced.
11:00 - Other types of smoke detectors.
12:00 - Notes on Smoke Detectors.
13:03 - PCBWay Sponsorship.
14:30 - The Counterintuitive size of atoms.
17:08 - How do Geiger Counters Work?
Key Branches from this video are: How does a Computer Mouse Work?
Erratum:
at 9min15sec - We talked about the strong nuclear force holding together the nucleus, which is accurate. However radioactive decay is a result of the weak nuclear force, which wasn't mentioned.
Note:
We recommend not taking apart the inside of a smoke detector. It is such a small amount of Americium, but if mishandled it can result in illness.
Animation: Mike Radjabov
Script, Modeling: Teddy Tablante
Twitter: @teddytablante
Modeling: Prakash Kakadiya
Voice Over: Phil Lee
Sound Design: Luis Huesca
Animation built using Blender 3.2 https://www.blender.org/
Image Credit:
Cloud Chamber of Am-241 - Kebukawan on commons.wikimedia.org.
References:
Background on Smoke Detectors https://www.nrc.gov/reading-rm/doc-collections/fact-sheets/smoke-detectors.html
How do Smoke Detectors Work? https://home.howstuffworks.com/home-improvement/household-safety/smoke.htm
Ionization Detectors https://circuitcellar.com/wp-content/uploads/2012/06/CC2011110601.pdf
Ionization vs Photoelectric https://www.nfpa.org/Public-Education/Staying-safe/Safety-equipment/Smoke-alarms/Ionization-vs-photoelectric
Smoke Detector Circuit https://www.electroschematics.com/smoke-detector-circuit/
Wikipedia contributors. "Alpha Particle". "Americium-241". "Cloud Chamber". "Radioactive Decay". "Smoke Detector" Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited September 2022
#SmokeDetector #Radioactive #HowStuffWorks
![How does Computer Hardware Work? [3D Animated Teardown]](https://i.ytimg.com/vi/d86ws7mQYIg/hqdefault.jpg "How does Computer Hardware Work? [3D Animated Teardown]
Go to http://brilliant.org/BranchEducation/ for a 30-day free trial and expand your knowledge. The first 200 people will get 20% off their annual premium membership.
Have you ever wondered what it would be like to journey through the inside of your computer? In this video, were taking you on a 3D animated adventure to every piece of computer hardware inside a desktop computer. Youll also see a nanoscopic view of the transistors inside the CPU and GPU. This video is like a biology dissection lab; instead, were opening up a computer and seeing all the various computer hardware inside.
Do you want to support in-depth engineering and technology education? Join us at: https://www.patreon.com/brancheducation
Website: https://www.branch.education
On Facebook: https://www.facebook.com/BranchEducation/
On Twitter: https://twitter.com/TeddyTablante
On Insta: https://www.instagram.com/brancheducation/
Table of Contents:
00:00 - 3D Computer Teardown
01:03 - Central Processing Unit CPU
03:12 - Motherboard
05:20 - CPU Cooler
06:00 - Desktop Power Supply
07:22 - Brilliant Sponsorship
08:52 - Graphics Card and GPU
11:52 - Computer Teardown Process
13:14 - DRAM
14:02 - Solid State Drives
15:04 - Hard Disk Drive HDD
15:52 - Computer Mouse
16:15 - Computer Keyboard
16:30 - Outro
Special thanks to Mximo Balestrini for help with the CPU & GPU VLSI Visualizations
https://github.com/mbalestrini/sky130_blender_renders_tutorial
Key Branches from this video are: How does DRAM Work? How do SSDs Work? How do Smartphone CPUs Work?
Erratum:
Animation: Mike Radjabov
Script: Teddy Tablante
Twitter: @teddytablante
Modeling: Prakash Kakadiya
Voice Over: Phil Lee
Sound Design: www.drilu.mx
Sound Effects and Music Editor: David Pinete
Supervising Sound Editor and Mixer: Luis Huesca
Animation built using Blender 3.4.1 https://www.blender.org/
References:
27 Main Parts of Motherboard and its Function https://ourtechroom.com/tech/parts-of-motherboard/
Cortex-A77- Microarchitectures - ARM https://en.wikichip.org/wiki/arm_holdings/microarchitectures/cortex-a77
GeForce GTX 1080 Ti Review - Pascal GPU Architecture https://www.guru3d.com/articles-pages/geforce-gtx-1080-ti-review,6.html
Intels 10th Generation Desktop CPUs have arrived - Still on 14nm https://arstechnica.com/gadgets/2020/05/intels-comet-lake-desktop-cpus-are-here/
Intel Core i9 - 10850K Processor https://ark.intel.com/content/www/us/en/ark/products/205904/intel-core-i910850k-processor-20m-cache-up-to-5-20-ghz.html
Insights into DDR5 Sub-Timings and Latencies https://www.anandtech.com/show/16143/insights-into-ddr5-subtimings-and-latencies
Mechanical Keyboard Guide https://www.daskeyboard.com/blog/mechanical-keyboard-guide/
Nvidia GP102 https://www.techpowerup.com/gpu-specs/nvidia-gp102.g798#:~:text=NVIDIAs%20GP102%20GPU%20uses%20the,CUDA%206.1%20can%20be%20used.
Teardown of a PC Power Supply https://www.righto.com/2021/05/teardown-of-pc-power-supply.html
Wikipedia contributors. Back End of Line. Central Processing Unit. Computers. Dynamic Random-Access Memory. Motherboard. Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited March 22nd 2022
#Computer #Hardware #Teardown")
