By William Gurstelle
A man's house is his fort, or so the asserting is going, yet might it face up to an assault via Attila and the Huns, Ragnar and the Vikings, Alexander and the Greeks, Genghis Khan and the Mongols, or Tamerlane and the Tartars?
Backyard Ballistics writer William Gurstelle poses this attention-grabbing query to modern day storage warriors and indicates them the way to construct an arsenal of old artillery and fortifications aimed toward withstanding those invading hordes. each one bankruptcy introduces a brand new undesirable actor within the background of struggle, info his conquests, and lines guns and fortifications to guard opposed to him and his minions.
Clear step by step directions, diagrams, and images exhibit the best way to construct a dozen initiatives, together with "Da Vinci's Catapult," "Carpini's Crossbow," a "Crusader-Proof Moat," "Alexander's Tortoise," and the "Cheval-de-frise." With a powerful emphasis on security, the ebook additionally supplies tips about troubleshooting, explains the physics in the back of the various tasks, and indicates the place to shop for the fabrics. by the point they've reached the final web page, at-home defenders far and wide could have succeeded in making a totally fortified domestic.
Read Online or Download Defending Your Castle: Build Catapults, Crossbows, Moats, Bulletproof Shields, and More Defensive Devices to Fend Off the Invading Hordes PDF
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Additional info for Defending Your Castle: Build Catapults, Crossbows, Moats, Bulletproof Shields, and More Defensive Devices to Fend Off the Invading Hordes
46 and 47. 5 0 0 50 100 150 200 250 K 300 T- Fig. 46. 00 Fig. 47. Dependenceof the massmagnetization of Mn hydrides (open circles) and Mn deuterides(solid circles) on, respectively,the hydrogen and deuterium content x. Applied magneticflux density 5 T, temperature82K. ,,, seehalf black point [78 B 11. 1 52M 1 53K I 55R 1 56M I 5SLl 61 B 1 6201 62s I 62Tl 62T2 62 W 1 63B I 64K I 64 hl 1 64M2 64Wl 65A 1 65Kl 65M I 66K 1 66Pl 67El 68s 1 68U 1 69Kl 69K2 69s 1 7OCl 7OSl 7OY 1 7OY2 7OY3 71Cl 71 E 1 71Hl 71Kl McGuire.
Shift of the Curie tempcraturc for Ni as a function of pressure measured with opposed Bridgman anvils [74B I]. The results obtained by [72L I] in a belt apparatus are shown for comparison (dashed curve). 70, K I I I atbcc) - Fig. 8. 4) and bee (curve I) Fe as a function of the lattice constant. The lattice constants of room temperature bee Fe and fee Cu are indicated by arrows on the abscissas. The experimental moments are shown by asterisk for bee Fe and by circles for fee Fe, obtained from neutron scattering 5 [83 B 21, 6 [62A I] and Mossbauer effect 7 [63 G l] measurements obtained by scaling Hhyp to the a-Fe moment.
Coefficients of forced linear magnetostriction of Fe at 293 K. 20 A; Ref. 8 68W2 56Cl . 1 800 1000 K 1200 Fig. 1. Variation of the first linear magnetostriction coefficient hl of Fe as a fimction of temperature. I: [59T1],2:[61G1],3:[68W2],4:[71D2],5:[83Dl]. 0 200 400 600 800 K 1000 T- Fig. 2. Temperaturevariation of the linear magnetostriction coefficientsAi of single crystal Fe [68 W 21.