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Article - “Why Hard Drives Die When SSDs Don’t”

  1. Measurements according to the National Nanotechnology Infrastructure Network at http://www.nnin.org/news-events/spotlights/how-big. Claims are for illustrative purposes only.
  2. Comparison based on the published non-operational shock specs of the Crucial BX300 SSD and the 1TB Western Digital Caviar Blue internal hard drive (WD10EZEX), which as of October 2017, is one of the industry’s top-selling internal hard drives.
  3. Murray E. Allen; Iain Weir-Jones; P Eng, et al. (1994). “Acceleration perturbations of daily living; A comparison to ‘whiplash’”. Spine: 1994 19(11): 1285-92
  4. NASA: SP-368 Biomedical Results of Apollo, Chapter 5: Environmental Factors, Table 2: Apollo Manned Space Flight Reentry G Levels
  5. Giles, Matt. “What Happens to a Football Player’s Brain During a Concussion?”. Popular Science. February 5, 2016.
  6. O’hanian, Hans. Physics. W W Norton & Co Inc, 1989
  7. As published online by the Interstate Electronics Corp. http://www2.l3t.com/iec/news/r_%20pr/032003.htm

 

Infographic

G-Force

EVENT

Gs

SOURCE    

Sneeze

2.9

Murray E. Allen; Iain Weir-Jones; P Eng, et al. (1994). “Acceleration perturbations of daily living; A comparison to ‘whiplash’”.  Spine: 1994 19(11): 1285-92    

Slap on back

4.1

Murray E. Allen; Iain Weir-Jones; P Eng, et al. (1994). “Acceleration perturbations of daily living; A comparison to ‘whiplash’”. Spine: 1994 19(11): 1285-92

Apollo 16 Reentry

7.19

NASA: SP-368 Biomedical Results of Apollo, Chapter 5: Environmental Factors, Table 2: Apollo Manned Space Flight Reentry G Levels

Plop down in chair

10.1

Murray E. Allen; Iain Weir-Jones; P Eng, et al. (1994). “Acceleration perturbations of daily living; A comparison to ‘whiplash’”. Spine: 1994 19(11): 1285-92

Max Acceleration a human has survived on a rocket sled    

46.2

 "Base re-enacts rocket sled test". Spartanburg Herald-Journal. South Carolina. wire reports. December 12, 2004. p. A5.

Extreme Football (USA) Impact

150

Giles, Matt. “What Happens to a Football Player’s Brain During a Concussion?”. Popular Science. February 5, 2016. 

The limit HDDs are rated to survive when powered off.

250

1TB Western Digital Caviar Blue internal hard drive (WD10EZEX)

Soccer ball struck by a foot

300

O’hanian, Hans. Physics. W W Norton & Co Inc, 1989

The limit SSDs are rated to survive, operational or powered off

1500

Crucial BX300 SSD Spec Sheet

Baseball struck by a bat

3000

O’hanian, Hans. Physics. W W Norton & Co Inc, 1989

RPMs

EVENT

RPMs

SOURCE

Solid State Drive

0

Crucial BX300 SSD Spec Sheet

LP Record

33.3

Gymnast Performing a Mid-Air Back Flip

90

Wärtsilä-Sulzer RTA96-C Common Rail marine diesel (World’s Largest)

102

 "The Most Powerful Diesel Engine in the World". Bath.ac.uk.

McDonnel-Douglas MD 520N Blade Rotation

477

Compact Disc, Inside vs Outside

500-200

Washing Machine

1200

Fidget Spinner Max Speed

3750

Higgins, Chris; Mental Floss; June 18, 2017; “Mathematician Calculates Rotational Speed of Fidget Spinner in Fidgets Per Second. (LINK)

HDD Rotational Speed

7200

1TB Western Digital Caviar Blue internal hard drive (WD10EZEX)

RPM - (Revolutions Per Minute) With electric and electronics devices, RPM measures the rotational speed of a motor's spindle. (https://www.pcmag.com/encyclopedia/term/50656/rpm)

Nanometers

OBJECT

nm

SOURCE

Fingernail Growth Rate

1 nm per second

DNA

2-3 nm

Human Hair

80,000-100,000 nm wide

1 Sheet of Paper

100,000 nm thick

1 Gold Atom

1/3 of 1 nm