Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


1260 posts

Uber Geek
+1 received by user: 620


Topic # 228560 11-Jan-2018 20:42
Send private message

Car Headrests Were Designed as Emergency Escape Tools?

In case you don't know, it's nigh impossible to open a door if your car is even a little submerged.

With power windows, or even manual windows, you might find it impossible to roll-down the windows.

It doesn't matter if your right-side-up or up-side-down, until the car fills inside with water, the water level is the same on the inside of the door as the outside, the pressure differential will keep the doors closed.

You cannot smash the windows with your feet, with the possible exception of a high-heel shoe.

That's why it's a life-saving tip to keep a window smasher/seatbelt cutter in the glove box.

Click to see full size

https://www.snopes.com/car-headrests-emergency-escape/

From Snoopes:

Claim: Car headrests were deliberately designed to be removed so that they can be used to smash windows during emergencies.

What's true: A removable car headrest can be used to break a window in an emergency.

What's false: Removable car headrests were deliberately designed to facilitate breaking windows in emergency situations.


Create new topic
2784 posts

Uber Geek
+1 received by user: 454


  Reply # 1937369 11-Jan-2018 20:48
One person supports this post
Send private message

With power windows, or even manual windows, you might find it impossible to roll-down the windows

 

Why?

 

Electrics may likely work for a short time. Can't see why a manual winder wouldn't work.





Sony Xperia X running Sailfish
Jolla C
Nokia N1
Dell Inspiron 14z i5


3351 posts

Uber Geek
+1 received by user: 1860

Trusted
Lifetime subscriber

  Reply # 1937370 11-Jan-2018 20:50
Send private message

Technofreak:

 

With power windows, or even manual windows, you might find it impossible to roll-down the windows

 

Why?

 

Electrics may likely work for a short time. Can't see why a manual winder wouldn't work.

 

 

I agree wind down windows would work if door is not damaged and electric if they have power

 

Linux





Ex JohnR VodafoneNZ 17 years 4 days

470 posts

Ultimate Geek
+1 received by user: 92


  Reply # 1937376 11-Jan-2018 21:05
Send private message

Technofreak:

 

With power windows, or even manual windows, you might find it impossible to roll-down the windows

 

Why?

 

Electrics may likely work for a short time. Can't see why a manual winder wouldn't work.

 

 

To much pressure on the window, the motor wont have the power to wind the window down, for manual if your strong enough to turn the handle, it will break off before the window winds down.


3351 posts

Uber Geek
+1 received by user: 1860

Trusted
Lifetime subscriber

  Reply # 1937377 11-Jan-2018 21:07
Send private message

throbb:

 

Technofreak:

 

With power windows, or even manual windows, you might find it impossible to roll-down the windows

 

Why?

 

Electrics may likely work for a short time. Can't see why a manual winder wouldn't work.

 

 

To much pressure on the window, the motor wont have the power to wind the window down, for manual if your strong enough to turn the handle, it will break off before the window winds down.

 

 

Electric car windows break fingers the motors are quite grunty and handles breaking off I don't believe either

 

Linux





Ex JohnR VodafoneNZ 17 years 4 days

470 posts

Ultimate Geek
+1 received by user: 92


  Reply # 1937382 11-Jan-2018 21:15
Send private message

Linux:

 

throbb:

 

Technofreak:

 

With power windows, or even manual windows, you might find it impossible to roll-down the windows

 

Why?

 

Electrics may likely work for a short time. Can't see why a manual winder wouldn't work.

 

 

To much pressure on the window, the motor wont have the power to wind the window down, for manual if your strong enough to turn the handle, it will break off before the window winds down.

 

 

Electric car windows break fingers the motors are quite grunty and handles breaking off I don't believe either

 

Linux

 

 

If you can wind it down before the car is submerged it will work, but once the you're submerged there is way to much pressure on the glass to wind the window down.




1260 posts

Uber Geek
+1 received by user: 620


  Reply # 1937385 11-Jan-2018 21:22
One person supports this post
Send private message

At the very least, most window breakers include a safe seat belt cutter, which could save lives, both inside your car and for other accidents you come upon.

3109 posts

Uber Geek
+1 received by user: 940

Trusted
Lifetime subscriber

  Reply # 1937414 11-Jan-2018 22:03
2 people support this post
Send private message

kingdragonfly: At the very least, most window breakers include a safe seat belt cutter, which could save lives, both inside your car and for other accidents you come upon.

 

At the very least it's a very handy safety message. A tool like that is something you hopefully never need to help yourself but you never know what you're going to happen upon out in the wild.


11695 posts

Uber Geek
+1 received by user: 3783

Trusted
Lifetime subscriber

  Reply # 1937422 11-Jan-2018 22:32
One person supports this post
Send private message

I once read a kidnap/terrorist survival manual (on a course about that) which advised that if you had time, you should open car windows before the car goes into the water, or at least before it sinks. The downside being that the water will come straight in, the upside being that you'll be able to exit more easily.

 

 

 

There is also this tool which attaches to your car keys and will cut belts and break glass: you tug it off the ring in an emergency.






11695 posts

Uber Geek
+1 received by user: 3783

Trusted
Lifetime subscriber

  Reply # 1937425 11-Jan-2018 22:35
Send private message

throbb:

 

Linux:

 

throbb:

 

Technofreak:

 

With power windows, or even manual windows, you might find it impossible to roll-down the windows

 

Why?

 

Electrics may likely work for a short time. Can't see why a manual winder wouldn't work.

 

 

To much pressure on the window, the motor wont have the power to wind the window down, for manual if your strong enough to turn the handle, it will break off before the window winds down.

 

 

Electric car windows break fingers the motors are quite grunty and handles breaking off I don't believe either

 

Linux

 

 

If you can wind it down before the car is submerged it will work, but once the you're submerged there is way to much pressure on the glass to wind the window down.

 

 

That would depend to some extent on the depth of the water. Certainly opening the door against the pressure would be almost impossible unless the car was equally full of water. Moving the window downwards seems less likely to be affected by the pressure although at any significant depth  the water would come in hard as soon as you began winding it down.






266 posts

Ultimate Geek
+1 received by user: 121

Trusted

  Reply # 1937542 12-Jan-2018 09:28
One person supports this post
Send private message

Geektastic:

Moving the window downwards seems less likely to be affected by the pressure although at any significant depth  the water would come in hard as soon as you began winding it down.



At a depth of less than a metre, there is already over 150kg of pressure being applied to the window. That force is jamming the glass against the frame, and there is no way that you can manually, or with power, lower the window.

See here

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:





News »

Intel introduces new NUC kits and NUC mini PCs
Posted 16-Aug-2018 11:03


The Warehouse leaps into the AI future with Google
Posted 15-Aug-2018 17:56


Targus set sights on enterprise and consumer growth in New Zealand
Posted 13-Aug-2018 13:47


Huawei to distribute nova 3i in New Zealand
Posted 9-Aug-2018 16:23


Home robot Vector to be available in New Zealand stores
Posted 9-Aug-2018 14:47


Panasonic announces new 2018 OLED TV line up
Posted 7-Aug-2018 16:38


Kordia completes first live 4K TV broadcast
Posted 1-Aug-2018 13:00


Schools get safer and smarter internet with Managed Network Upgrade
Posted 30-Jul-2018 20:01


DNC wants a safer .nz in the coming year
Posted 26-Jul-2018 16:08


Auldhouse becomes an AWS Authorised Training Delivery Partner in New Zealand
Posted 26-Jul-2018 15:55


Rakuten Kobo launches Kobo Clara HD entry level reader
Posted 26-Jul-2018 15:44


Kiwi team reaches semi-finals at the Microsoft Imagine Cup
Posted 26-Jul-2018 15:38


KidsCan App to Help Kiwi Children in Need
Posted 26-Jul-2018 15:32


FUJIFILM announces new high-performance lenses
Posted 24-Jul-2018 14:57


New FUJIFILM XF10 introduces square mode for Instagram sharing
Posted 24-Jul-2018 14:44



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.