Breaking:Large explosion at public event in Boston*Mod warning in OP

Solair · 17-04-2013 10:59AM

clairefontaine wrote: »

I think there are plenty of Americans in Boston who know plenty about the IRA given they funded them and provided safe houses for them. Probably don't feel very good about that these days though after 911.

It would be very unlikely in my view the IRA would alienate the community that aided them for so long, but you never know... it's not like they are always rational. .

Im keeping my mind open to all possibilities right now.

I don't think those rumours are coming from anyone with any knowledge of NI in Boston though, they're just random speculation based on that issue with the university and the tapes and putting 2+2 together and getting 22.

I mean, if they were going to do anything, they'd be after the tapes, not some random act against a city's population like that. It just wouldn't make any sense, not that any terrorism makes any sense, but the politically motivated ones tend to have at least some kind of predictability / logic to their actions even if they're totally unjustifiable and just plain wrong.

IceFjoem · 17-04-2013 11:14AM

Scotty # wrote: »

A bomb of nails is far more destructive (to humans) than a bomb of ball bearings.

Hmm, I would have guessed otherwise!

danniemcq · 17-04-2013 11:21AM

IceFjoem wrote: »

Hmm, I would have guessed otherwise!

same as, although i guess it all depends on the mass of the bearings.

perfect example is the pain when shot by plastic bb bullet compared to a steel one, nails would add the horror of being sharp and more aerodynamic maybe depending on the their flight

IceFjoem · 17-04-2013 11:46AM

danniemcq wrote: »

same as, although i guess it all depends on the mass of the bearings.

perfect example is the pain when shot by plastic bb bullet compared to a steel one, nails would add the horror of being sharp and more aerodynamic maybe depending on the their flight

I'd have said they were far less aerodynamic, some of the energy intended to propel them forward would be expended in putting them into a spin (which I'd guess it would as they don't have uniformly distributed weight) the spinning would also make them travel through the air slower. Although if you could rig your bomb to fire them straight through the air like a dart it would change the whole ball game I reckon, very difficult to achieve without some kind of barrels though.

At speeds like that I wouldn't think a pointy end would make much of a difference, the ball bearings would definitely travel further though.

Don't suppose you know anyone with a lab?

Jonny7 · 17-04-2013 12:08PM

IceFjoem wrote: »

I'd have said they were far less aerodynamic, some of the energy intended to propel them forward would be expended in putting them into a spin (which I'd guess it would as they don't have uniformly distributed weight) the spinning would also make them travel through the air slower. Although if you could rig your bomb to fire them straight through the air like a dart it would change the whole ball game I reckon, very difficult to achieve without some kind of barrels though.

At speeds like that I wouldn't think a pointy end would make much of a difference, the ball bearings would definitely travel further though.

Don't suppose you know anyone with a lab?

The US military used ball bearings in Claymores, I presume they have determined this is the most "effective" method

fryup · 17-04-2013 12:17PM

i reckon it was a pro-gun lobbyist nutter

remember Vice President Biden was holding a conference on gun control when it happened

seamus · 17-04-2013 12:23PM

Without being too matter of fact about it, unless you have qualifications in aerodynamics and what not, and your bomb has been meticulously constructed and placed, nails would prove relatively ineffective as only a handful would propel outwards like a bullet. The rest will cause shrapnel injuries, sure, but nothing excessive.

Ball bearings on the other hand will work no matter what because their shape is uniform. Slightly larger ball bearings, maybe 9mm in diameter, may have the same force and speed as a bullet. And you could fit hundreds, even thousands into a small bomb.

IceFjoem · 17-04-2013 12:27PM

.

Jonny7 · 17-04-2013 12:30PM

Ah right okay, so pressure cookers have been used as bombs throughout Afghanistan and elsewhere

7 pressure cookers were used in the Mumbai train bombings to kill 190 people.

I am pretty sure this info would be on the net, easily available

Pressure cooker, some nails/ballbearings, explosive and a timer, put them in a bag and leave.

ballsymchugh · 17-04-2013 12:32PM

seamus wrote: »

Without being too matter of fact about it, unless you have qualifications in aerodynamics and what not, and your bomb has been meticulously constructed and placed, nails would prove relatively ineffective as only a handful would propel outwards like a bullet. The rest will cause shrapnel injuries, sure, but nothing excessive.

Ball bearings on the other hand will work no matter what because their shape is uniform. Slightly larger ball bearings, maybe 9mm in diameter, may have the same force and speed as a bullet. And you could fit hundreds, even thousands into a small bomb.

the fact that they were put in a pressure cooker to increase the force of the explosion would increase the effectiveness of the nails, whatever direction they faced as they flew out i'd wager.

IceFjoem · 17-04-2013 12:37PM

ballsymchugh wrote: »

the fact that they were put in a pressure cooker to increase the force of the explosion would increase the effectiveness of the nails, whatever direction they faced as they flew out i'd wager.

Sure fire anything from a pressure cooker you'll get more bang for your buck. That's not the point though, ball bearings would be more effective than nails regardless of the device.

BattleCorp · 17-04-2013 12:38PM

fryup wrote: »

i reckon it was a pro-gun lobbyist nutter

remember Vice President Biden was holding a conference on gun control when it happened

And how exactly did you come to this conclusion?

I suppose you have some sort of evidence pointing to what you claim in support of your conclusion?

Or are you just having a brain fart?

Zyzz · 17-04-2013 12:43PM

fryup wrote: »

i reckon it was a pro-gun lobbyist nutter

remember Vice President Biden was holding a conference on gun control when it happened

BattleCorp wrote: »

And how exactly did you come to this conclusion?

Its a valid 'conclusion', but until the truth comes out he/she isn't right or wrong..

ballsymchugh · 17-04-2013 12:53PM

IceFjoem wrote: »

Sure fire anything from a pressure cooker you'll get more bang for your buck. That's not the point though, ball bearings would be more effective than nails regardless of the device.

i agree with you, it was whether or not the direction of the nails was important that i was picking up on. it'd be negligible in an explosion of that intensity. length would probably be the only factor then.

danniemcq · 17-04-2013 12:53PM

Jonny7 wrote: »

The US military used ball bearings in Claymores, I presume they have determined this is the most "effective" method

the word military is very important in your post.

High grade military explosives burn/explode much much quicker giving a much more powerful explosion.

a thrown together homemade device will not have the explosive power that military grade cemtex would have.

therefore it would not have had the force that a claymore would have.

That make sense?

Menas · 17-04-2013 12:55PM

Some of the hate and stupidity expressed by some on social media in the hours after the bomb is shocking.

http://publicshaming.tumblr.com/post/48093470152/two-explosives-went-off-at-the-boston-marathon-on

IceFjoem · 17-04-2013 01:01PM

danniemcq wrote: »

the word military is very important in your post.

High grade military explosives burn/explode much much quicker giving a much more powerful explosion.

a thrown together homemade device will not have the explosive power that military grade cemtex would have.

therefore it would not have had the force that a claymore would have.

That make sense?

Claymores are more powerful than less powerful bombs, got it!

Sin City · 17-04-2013 01:03PM

Trigger Happy wrote: »

Some of the hate and stupidity expressed by some on social media in the hours after the bomb is shocking.

http://publicshaming.tumblr.com/post/48093470152/two-explosives-went-off-at-the-boston-marathon-on

And they have guns freely available in that country , the mind boggles

danniemcq · 17-04-2013 01:07PM

seamus wrote: »

Without being too matter of fact about it, unless you have qualifications in aerodynamics and what not, and your bomb has been meticulously constructed and placed, nails would prove relatively ineffective as only a handful would propel outwards like a bullet. The rest will cause shrapnel injuries, sure, but nothing excessive.

Ball bearings on the other hand will work no matter what because their shape is uniform. Slightly larger ball bearings, maybe 9mm in diameter, may have the same force and speed as a bullet. And you could fit hundreds, even thousands into a small bomb.

i get your point but you have to think of what force is propelling them.

i made the point in a post that a slower explosion reduces the acceleration compared to military grade

eg ammonium nitrate has a detonation velocity of 5270m/s compared to something like Octanitrocubane at 10100m/s

if you put those into Force = mass * acceleration equation quite a large difference can be found.

I think i'm rambling now though and not even sure if i'm arguing with your point. Time for food

Kerrydude1981 · 17-04-2013 01:41PM

Trigger Happy wrote: »

Some of the hate and stupidity expressed by some on social media in the hours after the bomb is shocking.

http://publicshaming.tumblr.com/post/48093470152/two-explosives-went-off-at-the-boston-marathon-on

No helping them people they are FUBAR

Jonny7 · 17-04-2013 01:41PM

regardless of explosive power it seems ball bearings have been determined to be more destructive per density

However, a home made bomb, any small metal objects, e.g. nails, nuts, bolts, etc will produce a similar effect, if not quite as powerful

****sake now you have me in work looking up nail and ball bearing bombs.. I am so gonna get renditioned

Pudsy33 · 17-04-2013 01:42PM

Trigger Happy wrote: »

Some of the hate and stupidity expressed by some on social media in the hours after the bomb is shocking.

http://publicshaming.tumblr.com/post/48093470152/two-explosives-went-off-at-the-boston-marathon-on

The last comment there is shocking. Wow

danniemcq · 17-04-2013 01:54PM

Jonny7 wrote: »

regardless of explosive power it seems ball bearings have been determined to be more destructive per density

However, a home made bomb, any small metal objects, e.g. nails, nuts, bolts, etc will produce a similar effect, if not quite as powerful

****sake now you have me in work looking up nail and ball bearing bombs.. I am so gonna get renditioned

try having all that and working for an american company....

17-04-2013 02:05PM

Jonny7 wrote: »

regardless of explosive power it seems ball bearings have been determined to be more destructive per density

However, a home made bomb, any small metal objects, e.g. nails, nuts, bolts, etc will produce a similar effect, if not quite as powerful

****sake now you have me in work looking up nail and ball bearing bombs.. I am so gonna get renditioned

What size you take in an orange Jumpsuit??

:pac:

roryc · 17-04-2013 02:05PM

seamus wrote: »

Without being too matter of fact about it, unless you have qualifications in aerodynamics and what not, and your bomb has been meticulously constructed and placed, nails would prove relatively ineffective as only a handful would propel outwards like a bullet. The rest will cause shrapnel injuries, sure, but nothing excessive.

I remember being in the War museum in Vietnam and it showed some of the nail bombs America used in the war.

The nails had 'flights' on them, like darts, in order to fly straight. Always wondered what kind of sick mind would actually think about weapon design in that much detail.

smash · 17-04-2013 02:07PM

roryc wrote: »

Always wondered what kind of sick mind would actually think about weapon design in that much detail.

MacGyver!

17-04-2013 02:35PM

Sin City wrote: »

And they have guns freely available in that country , the mind boggles

But to be fair the vast majority of gun owners are normal, intelligent and down to earth individuals. They just have the worst figure heads imaginable who make them all out to be raving lunatics.

As for those tweets, well it just shows how warped and twisted by preconceived notions people can be. It's sad in this day and she that such xenophobic nonsense is still been spouted and even sadder that every racist idiot has a public platform to be heard.

roryc · 17-04-2013 02:37PM

How do we know that image is from the marathon? If it is, then like the poster said above this could definitely be him.

kunst nugget · 17-04-2013 02:38PM

partyatmygaff wrote: »

I'd be amazed if 4chan actually ends up being responsible for finding the bomber. They do some good from time to time.

Tbf, it's probably bullsh¡t but you never know.
I'd just be afraid that if 4chan were responsible for catching the killer that it might create some kind of paradox that bends the laws of physics and kills us all.

Sin City · 17-04-2013 02:39PM

Deleted User wrote: »

But to be fair the vast majority of gun owners are normal, intelligent and down to earth individuals. They just have the worst figure heads imaginable who make them all out to be raving lunatics.

As for those tweets, well it just shows how warped and twisted by preconceived notions people can be. It's sad in this day and she that such xenophobic nonsense is still been spouted and even sadder that every racist idiot has a public platform to be heard.

The vast majority maybe, but the minority still have access to firearms so when an event such as this happens, and all the hate filled /racist sentiments are out there, is it a good idea to arm the lynch mob?

Breaking:Large explosion at public event in Boston***Mod warning in OP**

Comments

Breaking:Large explosion at public event in Boston*Mod warning in OP