ROCK BLASTING and the COMMUNITY - oregon.gov

• Scaled distance (on Figure 1) is a formula for reducing the combined effects of distance and weight of the explosives into a single value that can be related to PPV. Scaled distance is d / w where d = distance from blast w = weight of explosive per delay (if instantaneous this is the total weight

WATCH: How Far Away Would You Need to Be to Survive a ...

Jan 30, 2017· In a 1-km (0.6-mile) radius, the peak pressure is four times that amount, and wind speeds can reach 756 km/h (470 mph). Technically, humans can withstand that much pressure, but most people would be killed by falling buildings. If you somehow survive all of that, there's still the radiation poisoning to deal with - and the nuclear fallout.

Frequently Asked Questions | The World of Explosives

Frequently Asked Questions Why do I feel the blasting? Most of the energy from a blast is used to break rock, but some energy will travel from the blast site in the form of ground and airwaves.Each of these can cause your house to vibrate or shake.

Possible Safety Distances to Consider for ... - emfinfo.org

Possible Safety Distances to Consider for EMF Sources. The following table of Safe Distances from EMF Sources is offered below to help reduce your exposure to electromagnetic fields (EMFs). But the actual EMFs emitted from different sources can vary greatly, and the distances needed to reach a desired "safety level" are difficult to predict.

Blast Loading and Blast Effects on Structures – An Overview

the form of a blast wave and the distance from the explosion. A universal normalized description of the blast effects can be given by scaling distance relative to (E/Po) 1/3 and scaling pressure relative to Po, where E is the energy release (kJ) and Po the ambient pressure (typically 100 kN/m2). For con-

Can the flash of light from a Nuclear explosion be seen ...

What you may be remembering is the fact that the flash (moving at lightspeed) reaches you before the blast (supersonic shock wave). How much sooner depends on your distance from the detonation, but with luck you have enough time to "duck and cover".

Shotgun Injuries - Gunshot Wounds - Derick Mussen Healthcare

Aug 22, 2019· In addition to the presence or absence of gunpowder, the presence or absence of pellet spread aids in the distance determination. However, it is still important to test-fire the same gun and ammunition that was used in the shooting to determine an accurate comparison with the distance in question. figure 8.1 A shotgun blast can be very destructive.

How many miles could 1 Nuclear bomb cover? | Yahoo Answers

Sep 23, 2009· How many miles could 1 Nuclear bomb cover? If it was dropped in the East coast of the US, (I'm not evil) how many states would be wiped out? ... but give off radiation which can cover as far of distance as 1000 miles. So the damage isnt just cuased from the actual blast. ... well depends on if your talking about blast radius or radiation radius ...

How Close Can You Be to Survive a Nuclear Bomb Blast ...

There's as much as a million times difference in power between a small nuclear bomb and a huge one – that's like comparing the tiniest firework cracker with a huge 6000 lb conventional 'bunker buster' bomb. ... There's a lot more to whether buildings and people survive than just distance from the blast, and one of the factors is ...

What is the blast radius of a 500 pound bomb - answers.com

The blast radius of a typical 500 pound bomb is between 100 and 200 yards. Massive damage is caused within this area and debris can travel much further in some instances.

BLASTING TECHNICAL INFORMATION - mcfinishing.com

blast hose ID, the nozzle ID, the pressure pot and pot piping are all much larger on the blast rooms than cabinet systems. The increase in production is also due to the further distance that the nozzle is from the work piece in blast rooms creating a larger blast pattern. Pressure- blast requirements (blast rooms)

Ground Jet Blast Hazard - Aviation safety

The usual targets of jet blast in these locations were light aircraft, weighing 5,000 pounds or less, that were unexpectedly crunched and pummeled by the blast forces from jet engines. Frequently, the jet blast damage was the result of misdirected engine run-ups and tests.

Effects of nuclear explosions - Wikipedia

The effects of a nuclear explosion on its immediate vicinity are typically much more destructive and multifaceted than those caused by conventional explosives. In most cases, the energy released from a nuclear weapon detonated within the troposphere can be approximately divided into four basic categories: the blast itself: 40–50% of total energy

Unit VI - Explosive Blast - fema.gov

Reflections can increase damage on any side Greater mass historically used for blast protection Greater mass usually detrimental ... Stand-off Distance and the Effects of Blast Background Purpose of activity: check on learning about explosive blast Requirements Refer to FEMA 426 and answer worksheet questions on explosive blast.

Blasting & Explosives FAQ's – City of Overland Park, Kansas

Blasting & Explosives FAQ's on City of Overland Park, Kansas – These FAQ's address some questions from home owners who live near blasting projects. Why do I feel the blasting? Most of the energy from a blast is used to break rock, but some energy will travel from the blast site in the form of ground…

MSH Lateral "blast" [USGS]

Although the lateral blast began some seconds later than the debris avalanche, the blast's velocity was much greater, so that it soon overtook the avalanche. Calculations have shown that the blast's initial velocity of about 220 miles an hour quickly increased to about 670 miles an hour.

Understanding Radioactive Fallout - nikealaska.org

A modern dental X-ray doses us with only 2 or 3 thouhs of a roentgen, and a complete set of mouth X-rays amounts to only about 1/25 of a roentgen (about 40 milliREM). When compared to the energy released by fresh radioactive fallout from a nuclear weapon this is nothing! The human body can tolerate much, much more than this.

Nuclear | Homeland Security News

One form is the explosive blast. Other forms are direct nuclear radiation and thermal radiation. And then there's radioactive fallout — not exactly energy released by the explosion, but still a destructive result. Explosive Blast Much of the damage inflicted by a nuclear explosion is the result of its shock wave.

How Much Walking You Need To Lose Weight

How to Lose Weight by Walking. The number of calories you can burn by walking is determined by your body weight and walking pace. On average, if you walk at a pace of 4 miles per hour (a common pace) you can burn roughly 400 calories per hour.. You don't necessarily need to go 4 miles a day.

IED Impacts | HowStuffWorks

This debris can penetrate the body in many places, leading to lacerations, bleeding, broken bones and loss of limbs. Second, the heat from the blast causes fires; both the heat and the fires themselves can cause severe burns. Finally, the pressure in a blast wave can …

How powerful is a jet blast from an airliner? - Quora

Hey!! Good question, normally people don't really pay interest into such things. They just see the effects, any ways. Almost every commercial jet operating manual has one--a single page with the matter-of-fact title, "Jet Blast Data." On that page...

1) Effects of blast pressure on the human body - cdc.gov

The human body can survive relatively high blast overpressure without experiencing barotrauma. A 5 psi blast overpressure will rupture eardrums in about 1% of subjects, and a 45 psi overpressure will cause eardrum rupture in about 99% of all subjects. The threshold for lung damage occurs at about 15 psi blast overpressure. A 35-45 psi

Abrasive Calculator - Rock Garnet Trading

Currently, we have two calculators, one calculator computes how much abrasive you will use when using our garnet abrasive and another computes how much abrasive you will use when using our PS ball abrasive. Garnet Abrasive Calculator

How far can the effects of nuclear explosion travel in space?

Feb 15, 2014· I've been wondering how far can the effects (EM radiation) of a nuclear explosion travel in space. I've heard that 1km is the maximum. I know that the yield of the bomb also affects but I've heard but don't remember from where that there is a certain limit some kilometers away from which the radiation can no loner travel no matter the yield of the bomb.

Tough SF: Nuclear EFP and HEAT

Nuclear EFP and HEAT ... According to Friedwardt Winterberg, 50% of the nuclear blast is converted into the kinetic motion of the particles in the shaped charge's explosive filler. The rest goes into heating the filler. ... initial distance) and how much extra propellant the warships are willing to …

nuclear weapons - How far away could one be and still see ...

With Earth curvature in mind, 810km gives a 50km high curve. So the earth is flat or the clip in the movie is full of crap. On the other hand, after doing some research, they state nuke explosions can be seen from 600 miles distance, but 600 miles gives a curve of 71km, I don't think we can …

EXPLOSIVE BLAST 4 T - fema.gov

ries, levels of protection, stand-off distance, and predicting blast effects. Specific blast design concerns and mitigation measures are discussed in Chapters 2 and 3. Explosive events have ... of the blast wave can be affected by the afterburning, particularly . 4-2 EXPLOSIVE BLAST EXPLOSIVE BLAST 4-3. for explosions in confined spaces. As the ...

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