Go Back   Super Soaker Central > Technology and physics > Water gun physics
User Name
Password
Register FAQ Members List Calendar Mark Forums Read


Welcome to the SSC Forums! You are currently viewing our boards as a guest which gives you limited access. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and more. Registration is fast, simple and absolutely free so please, join our community today! If you have any problems with the registration process or your account login, please contact contact us.
Reply
 
Thread Tools
Old 04-01-2006, 10:42 PM   #1
NiborDude
Retired Moderator
 
NiborDude's Avatar
 
Join Date: May 2004
Location: Ridgewood, NJ
Posts: 682
UserID: 131
Default CPS 2000 Legend

Okay, we just recently recruted a member who has the mark 1 CPS 2000 and had an interesting story to tell me. I asked him if he had any guns. Not knowing anything of the fabled story about the kid who shot his eye out with the CPS 2000, he told me about his something or other 2000 super soaker. He said he was out playing with it a while back. He shot it at a girls face from, what he said, was 20 feet away in the face. She went blind and had to go to the hospital. She eventually got her eye site back shortly after.

Even if the CPS 2000 super soaker could not shoot someone eye out, it could do some serious damage to the eyes. Let that be a lesson to everyone.
__________________


<span style='color:EEF2F7'>Blinding ignorance does mislead us. O! Wretched mortals, open your eyes! -Leonardo Da Vinci
NiborDude is offline   Reply With Quote
Old 04-02-2006, 06:13 AM   #2
joannaardway
Do not adjust your TV set
 
joannaardway's Avatar
 
Join Date: Feb 2006
Location: SW Hertfordshire, England
Posts: 875
UserID: 549
Default

Well, shooting at the face is never appropriate - don't do it people!

I'm glad to hear there was no long term damage.

I still need a full-face shield to avoid that kind of trouble.
__________________
"Over the hills and far away, she prays he will return one day. As sure as the rivers reach the seas, back in his arms again she'll be." - Over the Hills and far away, Gary Moore

"So many people have come and gone, their faces fade as the years go by. Yet I still recall as I wander on, as clear as the sun in the summer sky" - More than a feeling, Boston
joannaardway is offline   Reply With Quote
Old 04-02-2006, 06:31 AM   #3
ZOCCOZ
Water Gun Scholar/Veteran
 
ZOCCOZ's Avatar
 
Join Date: Jul 2005
Posts: 331
UserID: 454
Default

Personaly I think that same damage could have been done with a hose or any 20X stream from that distance. Getting hit in the eyes with any foreign object can result in damaged vision.

On Jay Leno some teen actress from some show(I think it was the OC or something) mentioned that she got hit by a 2005 Super soaker and start crying for loosing her eye sight temporarly on a birthday party.
ZOCCOZ is offline   Reply With Quote
Old 04-02-2006, 10:35 AM   #4
Ben
Founder
 
Ben's Avatar
 
Join Date: Mar 2003
Location: Maryland
Posts: 5,900
UserID: 1
Default

I would be more inclined to believe a highly concentrated stream would cause eye damage than anything else. So yes, a Liquidator or something could cause eye pain, but I doubt much more would be caused on that level of power. There's a reason water jet cutting uses highly concentrated streams of water.

The story sounds like a lie to me. Even when hit by a homemade water gun stream from 20 feet, not too much will happen. The key here is 20 feet - the stream has plenty of time to decelerate and break up. Any potential for damage has been eliminated. He obviously was either exaggerating of fabricating the entire story.
__________________
email: ben at sscentral dot org

Read this page before emailing me.

Do not send me a PM or email when the question could be answered by someone else. Post at the forums to save time. Someone else could answer your question before me, and the discussion on your question could be very helpful.
Ben is offline   Reply With Quote
Old 04-09-2006, 10:21 PM   #5
Silence
Administrator
 
Silence's Avatar
 
Join Date: Apr 2006
Location: Virginia
Posts: 3,186
UserID: 576
Exclamation

Ben, you pointed out that the stream would greatly lose velocity in 20 feet--but what if one squeezed the trigger until the PC was completely empty? Only the first part of the stream would be vastly affected by fluid air resistance--the rest would not lose much velocity, whether the distance would be 2 feet or 25 feet. A continuing torrent of water can cause serious damage.
Silence is offline   Reply With Quote
Old 04-10-2006, 05:17 AM   #6
Ben
Founder
 
Ben's Avatar
 
Join Date: Mar 2003
Location: Maryland
Posts: 5,900
UserID: 1
Default

Water is a fluid too. The slower front-end of the water stream will slow down the stream's velocity as well. That's what I believe is happening because I know for a fact that more powerful water gun's streams are weakened severly by fluid resistance, especially over a distance.
__________________
email: ben at sscentral dot org

Read this page before emailing me.

Do not send me a PM or email when the question could be answered by someone else. Post at the forums to save time. Someone else could answer your question before me, and the discussion on your question could be very helpful.
Ben is offline   Reply With Quote
Old 04-14-2006, 07:51 PM   #7
Silence
Administrator
 
Silence's Avatar
 
Join Date: Apr 2006
Location: Virginia
Posts: 3,186
UserID: 576
Default

Ben, I understand the logic behind your argument, but there's still something that I don't understand. If the front end of the stream is slowing down, but the velocity at the nozzle is still large, then where will that extra velocity go? It seems as if there would just be a surge of force behind the first "wave" of water in the stream.

Note: I'm not in AP Physics yet, so there's probably a flaw in my argument somewhere. I'm not against constructive criticism ...
Silence is offline   Reply With Quote
Old 05-22-2006, 06:59 AM   #8
CROC
Senior Member
 
CROC's Avatar
 
Join Date: Mar 2006
Location: Ontario, Canada (GTA)
Posts: 255
UserID: 569
Default

Quote:
Originally Posted by Ben
Water is a fluid too. The slower front-end of the water stream will slow down the stream's velocity as well. That's what I believe is happening because I know for a fact that more powerful water gun's streams are weakened severly by fluid resistance, especially over a distance.
So basically, what you are implying Ben, is that water guns worsen with age and/or extreme use
__________________
~CROC~(c 'rock)n.
-The master of ideas, and the occasional mod (Works with mr. dude)
Mods: 3xA combat - CPS Turbine - Super Flash Flood - (working on CPH)
CROC is offline   Reply With Quote
Old 05-22-2006, 07:18 AM   #9
Spinner
Administrator
 
Spinner's Avatar
 
Join Date: Feb 2004
Location: UK
Posts: 1,317
UserID: 77
Default

Quote:
Originally Posted by CROC
So basically, what you are implying Ben, is that water guns worsen with age and/or extreme use

I think he's actually referring to the resistance caused during over one shot of a blaster, not to decreased performance over months of usage.
__________________
ISS: Soaker Sagas

Submit your saga and see it up with other titans of water warfare.
Spinner is offline   Reply With Quote
Old 05-25-2006, 02:29 PM   #10
SS_Stencil
Junior member
 
Join Date: May 2006
Posts: 14
UserID: 634
Default

That could be a reason why they don't make them any more.

Happy she didn't get blinded.
SS_Stencil is offline   Reply With Quote
Old 06-30-2006, 06:45 PM   #11
lilGhost
Junior member
 
Join Date: Jun 2006
Posts: 3
UserID: 747
Default

i was never old enough to hear about this cps 2000 stuff, my first water gun was a XP 510, i think. I would never had thought a cps could do that much damage, me and my bros just get body shots on each other.
lilGhost is offline   Reply With Quote
Old 07-01-2006, 07:28 AM   #12
Silence
Administrator
 
Silence's Avatar
 
Join Date: Apr 2006
Location: Virginia
Posts: 3,186
UserID: 576
Default

Somewhat old thread, but oh well.

Yeah, I never even knew the CPS line existed! (though I had seen Monsters in this booklet thing) However, no gun is harmful when used with common sense--it's the user who is at fault if he point-blanks somebody in the eye.

And that's an XP 310, I believe...the "510" doesn't exist.
__________________
Forum Rules
Silence is offline   Reply With Quote
Old 07-01-2006, 07:50 AM   #13
Ben
Founder
 
Ben's Avatar
 
Join Date: Mar 2003
Location: Maryland
Posts: 5,900
UserID: 1
Default

I've actually been thinking about testing and debunking this myth recently...

This is a myth. I'll buy a pigs head from the local butcher and try all sorts of things to damage the eyes if someone would like - a CPS 2000 type blast won't damage much. The CPS 2000 is not a pressure washer or water jet cutter. It won't feel good, but it won't pop your eye out. The CPS 2000 simply does not have enough power go get a lot of pressure at the nozzle, which is required for an eye-cutting or eye-damaging blast. That's a half inch hole if you didn't realize. Only water cannon type water guns will get that sort of power.

We could even put it all together in a MythBusters-style video. Or even better, we could get the MythBusters to do it.
__________________
email: ben at sscentral dot org

Read this page before emailing me.

Do not send me a PM or email when the question could be answered by someone else. Post at the forums to save time. Someone else could answer your question before me, and the discussion on your question could be very helpful.
Ben is offline   Reply With Quote
Old 07-01-2006, 07:58 AM   #14
Silence
Administrator
 
Silence's Avatar
 
Join Date: Apr 2006
Location: Virginia
Posts: 3,186
UserID: 576
Default

Yup, we need a few suggestions on what we could have MythBusters test...I suggested drywall to Ben, but it doesn't seem nearly so I ampressive as a pig's head or something else. I found their myth suggestion forum, so we can submit something at some point.
__________________
Forum Rules

Last edited by Silence : 07-01-2006 at 08:10 AM.
Silence is offline   Reply With Quote
Old 07-01-2006, 08:27 AM   #15
Ben
Founder
 
Ben's Avatar
 
Join Date: Mar 2003
Location: Maryland
Posts: 5,900
UserID: 1
Default

I think we should try it first by ourselves and then submit later. Pig's heads should be relatively easy for me to obtain given there's a butcher less than half a mile from my house.

A pig's heads would be my primary choice because it's what MythBusters actually use when testing something on a head. Dryway would be way too strong too. I've tried marshmellows in the past, but I concluded that they were too dissimilar to eyes (even still, no damage appeared from my most powerful water gun at the time, my CPS 27000).
__________________
email: ben at sscentral dot org

Read this page before emailing me.

Do not send me a PM or email when the question could be answered by someone else. Post at the forums to save time. Someone else could answer your question before me, and the discussion on your question could be very helpful.
Ben is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -5. The time now is 03:48 PM.


Powered by vBulletin
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 2.2.2
Copyright ©2003 - 2008 The Super Soaker Central project