Supersonic bullets produce deafening blasts in their path
Candidate's account of a "whizzing sound" is false
The “assassination attempt” is a national embarrassment. The supposed victim of the assassination attempt failed to show a wound after bleeding profusely at the scene. Law enforcement failed to disclose whether any bullet has been recovered from the alleged assassination attempt. It’s not even clear law enforcement is conducting an investigation. No medical records produced of the allegedly injured candidate. A fictitious photograph of a bullet in flight. A single phone video of the shooting. The list goes on.
While it is likely that many are doubtful of the legitimacy of the event, few have spoken out. We are in zombie mode, at this point, in this country. God forbid anyone becomes a conspiracy theorist.
Yet, there is more evidence of the fraudulence of the assassination attempt. It comes in the form of a presentation by Gregory A. Flamme and William J. Murphy to the National Hearing Conservation Association 2018 Conference held in Orlando, Florida. The presentation was entitled: “Auditory Hazards of Bullet N-Wave Exposure”. Briefly, the presenters described a study of the sound of a 0.50 Beowulf bullet at points close to its trajectory. “N-wave” in the presentation title refers to the sonic boom produced by such bullets.
The presentation looked at cases where the bullet passed within 15 cm of the microphone and where the produced sound is approximately 175 dB. The presentation reached an unambiguous conclusion: “N-waves produced by the .50 Beowulf® rifle exceed the unprotected single-shot limit.” In other words, at close distances, the sonic boom produced by the bullet is may cause hearing loss from a single exposure.
That is consistent with a YouTube presentation of the sound along the trajectory of a bullet from an AR-15. In that video, the bullet is shown to produce a sound whose strength is about 130 dB at a distance of 25 meters from the path of the bullet.
This is clearly at odds with the description of the sound of the bullet provided by candidate Trump:
I knew immediately that something was wrong in that I heard a whizzing sound, shots and immediately felt the bullet ripping through the skin.
The evidence is overwhelming that the “assassination attempt” was a hoax. The “leaders” of our country are playing games with the public for entertainment.
UPDATE 8/23:
Here is a more qualitative discussion of the sonic boom from a bullet. A Quora question asked:
What does the 'sonic boom' of a bullet breaking the sound barrier sound like?
Here is an excerpt from one participant in the discussion:
As I have spent more than enough time in the target butts, pulling targets on a shooting range where the guns were being fired anywhere from 300–1200 meters away, I have a pretty good idea. Even when the shooters are shooting from 1200 meters away, I ALWAYS bring my ear plugs or muffs along. It is a bloody loud crack.
The response also states that person was “1–2 meters away” from the bullet path.
UPDATE 8/23 (2nd)
Also - why would we assume that the bullets fired at the “assassination attempt” were supersonic? In the supposed audio recording of the event, each bullet produced a pair of very evenly spaced explosive sounds - corresponding to the sonic boom followed by the muzzle blast that is characteristic of a supersonic bullet.
Update 8/27
A study analyzed the strength of the sonic boom from 5.56 mm ammunition at different “miss” distances. An graph excerpted from a publication describing the study is shown below.
The sound level measurements represented by the blue clusters are for a miss distance of 2 meters. For 5.56 mm ammunition, the sonic boom has a range of about -2.25 to -2 in Log(Peak pressure ([atms]). That corresponds to a range of 149 to 154 dB. This is direct evidence that such a sound is deafening - at a distance of 2 meters from the ear. (Other sound level measurements were for 3 m (red), 5 m (green), 10 m (cyan), 20 m (black), 40 m (magenta), and 100 m (yellow). All indications are that the sound level determined from this study underestimates the sound the candidate would have heard if such a bullet had hit his ear.
Update (8/27) 2nd
For comparison - a study looked at the sound produced by various fireworks. A “Cake Bomb”, for example, with 0.5 grams of explosive material, creates a sound of 130 dB at 4 meters. As a rule of thumb, the measured level of sound from a point source changes by 6 dB for every doubling or halving of the distance to the source of the sound - the so-called inverse-square law. So - 136 dB at 2 meters, 142 dB at 1 meter and 148 dB at 0.5 meters for this explosive.
Update (9/1)
The above graph represents the sound pressure level in log of peak pressure in [atmospheres]. That unit of sound pressure level is interchangeable with decibels. The conversion steps are as follows: (a) Apply the formula A=10^S to find the peak pressure in atmospheres. S is the sound pressure level in units of log of peak pressure in atmospheres and A is the peak pressure in atmospheres. (b) Apply the following formula to convert from units of atmospheres to Pascals: P = 101325 Pascals/Atmospheres X A, where P is the pressure in Pascals and (c) Apply the formula for sound pressure level in decibels: D=20 log(P/0.00002 Pascals), where D is the sound pressure level in decibels.