Відео

Ours are definitely over 10 years old. Actually roughly 2 more years and they'll have been in this house since we bought it in 06.

Cool. You just gave me an excuse to rip the Americium out of my junk detectors. 😂

How does it compares to the dual sensors alarms from First Alert I wonder

Do not give long story just tell people what they have to use that is safe.

8:03 Look! We have a friendly visiter on the roof.

ITS FAKE WHEN HE OPENED THE OVAN ITS STARTED BUT HE USED TOWL AND IT STOP FAKEEEEEEEEEEE

10:29 just buy rwo and put them at the same place lol

Normal people: I’ll just install a smoke detector Fire alarm enthusiasts: I got a better idea…

Appreciate the video and the website. Was going to grab a dual sensor photoelectric ionization sensor but after reading your site I realized its not Gen 8. So looks like I'll just go with a Gen 8/9 photoelectric unit.

what if you simply use a hybrid ionization - photoelectric smoke alarm?

Im bout to send this to my black friend 😈

Absolutely crazy that these junk smoke alarms aren't banned already. Here in my country they are banned. Only photoelectric and thermal alarms are permitted.

It seems like you messed up the graphic on response times for smoke alarms. You say photoelectric is faster but the graphic shows that it takes longer. I noticed the mixup on the flaming test graphic as well. You must have switched the names on both.

Very good prodcution

8:04 great squirrel👍

Is anyone going to talk about those combo alarms that have BOTH photoelectric and ionization detectors in them? While they aren’t common, they do exist, and provide the benefits of both alarms. The photoelectric part keeps you safe during smoldering fires, while flaming fires are quickly detected by the ionization detector. It still suffers from false alarms, though, due to the older tech being used for the ionization part.

We have PE detectors. I just replaced them again today. They are only good for ten years. If you don’t replace them before they expire? The all start going off until you replace them.

Dude crap isn't hold, damn pagan.

Screw these little coffin cars all together lol, I sure wouldn't put my kids and Wifey in one, for one thing they are too small, there are 7 of us loL But the most dangerous thing to be in/on going down the road in other than a bike is a motorhome and they dont ever have crash safety tests in those, NEVER.

In my hometown a guy hit a guardrail, but it wasnt attached to the poles, so it went through his car but he survived by just a few cm, had he had a passenger however I dont even wanna think about the consequenses😳

3:07 transition

Cybertruck is going back in time it seems

It's surreal to see a video that shows me something I've known about for over a decade. I remember being a relatively young teenager and going to a free lunch for elderly citizens sponsored by the fire department, to educate older people on the importance of having the right kind of fire detectors. I went with my grandparents, and saw basically the same sort of research shown in this video. They recommended a classical fire alarm that was physically wound up, and had a plastic/wax stopper that melted at a specific temperature. I wonder how those types of alarms perform against the modern battery of tests in a wide range of different types of fires. This was at least over 15 years ago, so I'd be interested in how those types of alarms hold up against modern testing standards.

That Volvo had its engine and gearbox removed and no battery so active safety was disabled so it’s not a fair comparison

The smoke of Polyutheraine Foam is also more toxic than that of paper and wood.

A year or so ago when it was time to replace my detectors, I found dual models that have both sensor types in one package. So far I've had no issues with nuance alarms, so hopefully these will last many years. Might be an option for people who want to update now, but can't find any 8th gen units.

Optical detectors are the best. Mine are all dualies except the kitchen and garage, those are optical only

My smoke alarm says: "for best results hold directly over flame".

Your chart is incorrect in 11:30. You made it opposite.

I would like to see what's safer to drive a old fully loaded 80,000 lbs Peterbilt 379 vs the small car in a head on collision 😂

Talked about everything but the advancement "more the lack thereof" of the actual rubber and it's lifespan. There have been many improvements in rubber softness but no beans here either.

Finally a good sponsor

Hi Andrew, I enjoyed watching your video. Understanding the concept by reading a book is too difficult no matter how many books you read or images you see. Color images though are better. But understanding those concepts through video is much better. I found the video insightful. I have one doubt, it might be silly. I wanted to know how the tire's diameter affects the vehicle's performance. I will take the case of a scooter, a motorcycle, and a 3 wheeler tempo. The diameter of a scooter tire is smaller than a motorcycle tire but comparable to 3 wheeler tempo. I wanted to know what design consideration goes into the selection of Tire size. How do tire companies decide on the tire sizes?

Good job, Andrew!

Motorbikes and bicicles: YOU are the crumple zone

welp they prob just made it cheaper by making it to a heat detector

I was in suspense up until the lorax scene 😂. A lot of those projects just looked like reinvented watersheds. Hopefully the Philadelphia model is proven successful because paving over everything like in tokyo is plain awful

Bought a 1024gb sandisk micro sd for my escort m2 dash cam, and this sucker will not format. Bought the biggest one thinking its the best, but it refuses to format through the app, not sure if I went with a smaller size if it would work better

Good material. I have totally unsafe car and i want to buy "new" one maybe even more dangerous ) Not because i want to die, but because, for my opinion, new cars are ugly boring trash ) But about actual euroncap and same usa regulation - more point now for the active safety. For potential prevent the accident. Lain assist, auto stop and more. Sound smart, but how i hate this systems )))

Oh wow, that's really really interesting Very cool indeed, I'm glad people take the time and money to research and test this stuff, and that we've got the technological advancement necessary to make these relatively affordable Very cool

is the last section sponsored?

we have defeated dwarnesim

Really good job Andrew. All you have exposed here is really vital information to know better where we are putting our lives.

at 7:38 you show that the entire trunk/rear of a SUV is a crumple zone - no. all of the interior of the cabin of a SUV is a passenger compartment. I am not aware of european manufacturers, that turn the inside of the cabin, esp of SUVs, into a crumple zone. the crumple zones are OUTSIDE the cabin, thats the point

191k sub

for my project im gonna need alot more smoke detectors

Fantastic jobs around the developed world vs critical damage in the rest of the world

Why nt put both sensors in one?

Well, the low-lying parts of town did get a flood a few years back, but if any water level reached my house 350ft above sea level, it would be the result of both polar ice caps melting, and the flooding would be the least of our problems.

Keeping the battery fresh makes a big difference with ionization false alarms - a weak battery triggers more easily. Also get an alarm with a hush button to quiet false alarms so you don't rip it off the ceiling to make it shut up. I've been using dual photoelectric/ionization sensor smoke alarms for over a decade - they've never been hard to find. You don't have to stick with whatever your landlord or homebuilder installed on the cheap, and the price difference per alarm is only $5 to $10.