Sand Glass Timer
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 1x Hourglass Sandglass Smile Colar Sand Timer 180 Second 3 Minute Home M US $1.99 End Date: Wednesday May-23-2012 20:55:50 PDT Buy It Now for only: $1.99 |
 30 MINUTE HOUR GLASS Vintage Style Timer WHITE SAND $73.95 End Date: Wednesday May-23-2012 18:37:34 PDT |
 3x Hourglass Sandglass Smile Colar Sand Timer 180 Second 3 Minute 3Pcs Home M US $4.59 End Date: Thursday May-24-2012 10:21:30 PDT Buy It Now for only: $4.59 |
 NEW SAND TIMER HOURGLASS HOUR GLASS CLOCK Color Assorted $4.59 End Date: Friday Jun-8-2012 8:48:00 PDT Buy It Now for only: $4.59 |
 Pink white blue sand sandglass hourglass timer 5 min 10min 15min decor gift $11.99 End Date: Sunday May-27-2012 8:14:00 PDT Buy It Now for only: $11.99 |
 1x Hourglass Sandglass 1pcs Colar Sand Timer 300 Second 5 Minute Home MIC US BC $1.99 End Date: Thursday May-31-2012 0:36:48 PDT Buy It Now for only: $1.99 |
 Extra Large Hour Glass w Fine Light Brown Powder Sand 60 Min Fathers Day NEW $29.99 End Date: Thursday May-31-2012 11:58:12 PDT Buy It Now for only: $29.99 |
 1x Hourglass Sandglass 1pcs Colar Sand Timer 300 Second 5 Minute Home M US ABC $1.69 End Date: Thursday May-31-2012 0:36:43 PDT Buy It Now for only: $1.69 |
 Nautical Theme Sand Timer Hour Glass $49.99 End Date: Thursday Jun-21-2012 14:02:11 PDT Buy It Now for only: $49.99 |
 1x Hourglass Sandglass 1pcs Colar Sand Timer 300 Second 5 Minute Home M US BBC N $1.99 End Date: Tuesday Jun-19-2012 23:09:24 PDT Buy It Now for only: $1.99 |
 Sand Timer Hour Glass Wood Carving 60 Minute Cycle $44.00 End Date: Friday May-25-2012 13:53:11 PDT Buy It Now for only: $44.00 |
 Beautiful Clear Glass Hourglass Sandglass Timer Gift H1 $24.99 End Date: Tuesday May-29-2012 20:15:36 PDT Buy It Now for only: $24.99 |
 Triangle sand clock watch sandglass Hourglass Timer home decor gifts $22.99 End Date: Monday Jun-11-2012 9:40:11 PDT Buy It Now for only: $22.99 |
 Hourglass Sandglass 30 Minute Timer Beautiful Octagon Glass RED Sand $15.95 End Date: Sunday May-27-2012 21:11:53 PDT Buy It Now for only: $17.95 |
 Purple sand clock watch glass hourglass timer 30min $23.79 End Date: Tuesday Jun-5-2012 9:36:04 PDT Buy It Now for only: $23.79 |
 SAND TIMER HOURGLASS HOUR GLASS CLOCK Color Assorted $2.98 End Date: Tuesday May-29-2012 20:25:33 PDT Buy It Now for only: $2.98 |
 1x Hourglass Sandglass Colar Crystal Sand Timer 180 Second 3 Minute Home CHE US $4.99 End Date: Sunday May-27-2012 19:29:12 PDT Buy It Now for only: $4.99 |
 Frame green sand clock watch glass Hourglass Timer 60Min xmas gift home decor $33.99 End Date: Sunday Jun-17-2012 7:43:52 PDT Buy It Now for only: $33.99 |
 Screw thread colorful sand clock sandglass Hourglass Timer 30Min home decor gift $20.40 End Date: Monday Jun-11-2012 8:17:33 PDT Buy It Now for only: $20.40 |
 2pcs Children Toothbrush Hourglass Sandglass Sand Egg Timer 2 Minute 120 Seconds $1.09 End Date: Monday May-28-2012 23:42:50 PDT Buy It Now for only: $1.09 |
 SAND TIMER HOURGLASS HOUR GLASS CLOCK Color Assorted135minute $7.99 End Date: Thursday May-31-2012 10:54:01 PDT Buy It Now for only: $7.99 |
 Plastic sand glass sandglass hourglass timer 30 minute home decor birthday gift $16.99 End Date: Sunday May-27-2012 8:14:10 PDT Buy It Now for only: $16.99 |
 Colorful four corner sand glass sandglass hourglass timer 30min home decor gift $20.99 End Date: Sunday May-27-2012 8:13:11 PDT Buy It Now for only: $20.99 |
 White Sand Hourglass 5 Minute Min Timer New Classic Sandglass Stand Clear Design $5.99 End Date: Thursday Jun-7-2012 3:54:58 PDT Buy It Now for only: $5.99 |
 Handcraft Wood Art Hourglass Sandglass sandy clock Timer decoration decor Gift $4.99 End Date: Tuesday Jun-5-2012 7:51:16 PDT Buy It Now for only: $4.99 |
 3x Hourglass Sandglass Smile Colar Sand Timer 180 Second 3 Minute 3Pcs Home M US $0.99 End Date: Thursday May-24-2012 10:09:14 PDT |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.00 End Date: Thursday Jun-14-2012 22:47:55 PDT Buy It Now for only: $1.00 |
 1x Hourglass Sandglass Colar Crystal Sand Timer 180 Second 3 Minute Home MIC US $4.99 End Date: Sunday May-27-2012 19:30:36 PDT Buy It Now for only: $4.99 |
 3 minutes Embedded crystal hourglass timer Colorful sandglass $6.80 End Date: Sunday May-27-2012 20:47:16 PDT Buy It Now for only: $6.80 |
 Kuchenprofi Sand Tea Timers Assorted Set of 3 Glass Plastic mini hour glass $15.11 End Date: Sunday Jun-17-2012 10:52:07 PDT Buy It Now for only: $15.11 |
 Bulb blue sand glass clock Hourglass Timer 30Min gifts $17.84 End Date: Friday Jun-8-2012 8:45:54 PDT Buy It Now for only: $17.84 |
 Hourglass Sandglass 30 Minute Timer Beautiful Glass RED Sand $16.95 End Date: Monday Jun-4-2012 11:28:02 PDT Buy It Now for only: $16.95 |
 New 4x Hourglass Sandglass 4pcs Colar Sand Timer 300 Second 5 Minute Home M UK G $3.71 End Date: Tuesday Jun-5-2012 20:53:43 PDT Buy It Now for only: $3.71 |
 colorful sand timer 3 min timer NEW glass wood B1 $8.99 End Date: Sunday Jun-10-2012 8:17:42 PDT Buy It Now for only: $8.99 |
 New 4x Hourglass Sandglass 4pcs Colar Sand Timer 300 Second 5 Minute Home MIC UK $3.78 End Date: Sunday May-27-2012 19:40:50 PDT Buy It Now for only: $3.78 |
 Pink glass sand clock hourglass timer room home decor $18.99 End Date: Friday Jun-22-2012 7:22:51 PDT Buy It Now for only: $18.99 |
 1x Hourglass Sandglass Colar Crystal Sand Timer 180 Second 3 Minute Home MIC US $4.99 End Date: Saturday May-26-2012 23:23:55 PDT Buy It Now for only: $4.99 |
 Sand Timer 2 Minute Hourglass Sandglass Home Decor $0.99 End Date: Thursday May-24-2012 19:57:04 PDT |
 Awesome Shaped Glass Sand Egg Timer Tan Sand Fathers Day 30 min NEW $28.03 End Date: Friday Jun-15-2012 13:01:58 PDT Buy It Now for only: $28.03 |
 Purple pink sand glass wineglass shape sandglass hourglass timer 60 minute gift $24.99 End Date: Sunday May-27-2012 8:14:33 PDT Buy It Now for only: $24.99 |
 5 X Colorful Handcraft Wood Art Hourglass Sandglass sandy clock Timer Decoration $15.00 End Date: Sunday Jun-10-2012 13:19:18 PDT Buy It Now for only: $15.00 |
 Benzara 10 Minute Nautical Ship Sand Timer Metal Hour Glass 7 30676 New $24.99 End Date: Tuesday Jun-19-2012 21:04:26 PDT Buy It Now for only: $24.99 |
 Sand Timer Hourglass Sandglass 15 MINUTES Carved Wood $19.99 End Date: Wednesday May-30-2012 18:49:21 PDT Buy It Now for only: $19.99 |
 1x Hourglass Sandglass Colar Crystal Sand Timer 180 Second 3 Minute Home CHE US $4.99 End Date: Saturday May-26-2012 23:20:50 PDT Buy It Now for only: $4.99 |
 Vintage Hour Glass Timers Glass and Wood Sand Timers 4 Tall You get 2 $19.99 End Date: Monday Jun-11-2012 15:47:53 PDT Buy It Now for only: $19.99 |
 2 Minute Home Hourglass Sandglass Sand Timer 120 Second $3.66 End Date: Friday Jun-15-2012 20:06:22 PDT Buy It Now for only: $3.66 |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.18 End Date: Friday May-25-2012 9:39:43 PDT Buy It Now for only: $1.18 |
 Hourglass Sandglass 1 HR Timer Beautiful Glass BLACK Sand $17.95 End Date: Monday Jun-4-2012 11:40:08 PDT Buy It Now for only: $17.95 |
 VINTAGE HANGING WOOD RABBIT WITH GLASS 3MIN SAND EGG TIMER MADE IN JAPAN RARE $34.99 End Date: Saturday Jun-2-2012 4:19:47 PDT Buy It Now for only: $34.99 |
 2 Minutes BlueOrange Sandglass Sand Timer Timing Game $0.99 End Date: Saturday May-26-2012 0:04:00 PDT |
 BRAND NEW SAUNA SPA SAND TIMER HOUR GLASS ACCESSORIES $19.00 End Date: Wednesday Jun-6-2012 13:43:13 PDT Buy It Now for only: $19.00 |
 Purple pink 3 minute sandglass hourglass timer for brush teeth childrens gift $10.99 End Date: Sunday May-27-2012 8:14:19 PDT Buy It Now for only: $10.99 |
 Hourglass Sandglass 30 Minute Timer Beautiful Glass YELLOW Sand $13.95 End Date: Monday Jun-4-2012 11:31:53 PDT Buy It Now for only: $13.95 |
 5 Minutes Hourglass Sandglass Sand Timer Shocking Pink $4.19 End Date: Saturday Jun-16-2012 8:09:13 PDT Buy It Now for only: $4.19 |
 VINTAGE HANGING WOOD CHICK HATCHING GLASS 3MIN SAND EGG TIMER MADE IN JAPAN RARE $34.99 End Date: Saturday May-26-2012 0:54:32 PDT Buy It Now for only: $34.99 |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.00 End Date: Thursday Jun-21-2012 11:05:45 PDT Buy It Now for only: $1.00 |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.39 End Date: Thursday Jun-21-2012 10:54:04 PDT Buy It Now for only: $1.39 |
 Hourglass Sandglass 30 Minute Timer Beautiful Octagon Glass BLUE Sand $17.95 End Date: Monday Jun-4-2012 11:09:23 PDT Buy It Now for only: $17.95 |
 GLOBAL VILLAGE GLASS STUDIOS Hourglass 686 SEA SIDE SAND TIMER $17.95 End Date: Sunday Jun-10-2012 12:23:21 PDT Buy It Now for only: $17.95 |
 Awesome Shaped Glass Sand Egg Timer Seafoam Blue Fathers Day 30 min NEW $27.99 End Date: Friday Jun-15-2012 13:43:58 PDT Buy It Now for only: $27.99 |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.00 End Date: Thursday May-24-2012 9:02:10 PDT Buy It Now for only: $1.00 |
 7 BRASS SAND TIMER 5 Minute Hourglass HOUR GLASS $30.95 End Date: Tuesday May-29-2012 9:06:11 PDT |
 Sandglass Hourglass Timer rotate colorful lamp light 30Min decor birthday gift $42.49 End Date: Thursday May-24-2012 9:22:21 PDT Buy It Now for only: $42.49 |
 7 BRASS SAND TIMER 5 Minute Hourglass HOUR GLASS $31.41 End Date: Sunday May-27-2012 15:26:13 PDT Buy It Now for only: $31.41 |
 Blue green stair oil glass sand clock hourglass timer $15.99 End Date: Friday Jun-8-2012 8:45:33 PDT Buy It Now for only: $15.99 |
 Ribbed Hour Glass w Blue Sand Fathers Day Unique Color Powder Sand NEW $29.69 End Date: Monday Jun-11-2012 13:25:09 PDT Buy It Now for only: $29.69 |
 GLOBAL VILLAGE GLASS STUDIOS Hourglass 687 COSMOS SAND TIMER $17.95 End Date: Sunday Jun-10-2012 12:25:30 PDT Buy It Now for only: $17.95 |
 Book shape sand sandglass Hourglass Timer desk home decor xmas birthday gift $27.99 End Date: Thursday Jun-21-2012 7:55:30 PDT Buy It Now for only: $27.99 |
 Sauna Sand Timer hour glass Sauna accessories $19.67 End Date: Sunday Jun-17-2012 7:20:40 PDT Buy It Now for only: $19.67 |
 1x Hourglass Sandglass Colar Crystal Sand Timer 180 Second 3 Minute Home M UK $4.09 End Date: Monday May-28-2012 3:09:28 PDT Buy It Now for only: $4.09 |
 Natico Originals Blue Sand Gravity Glass Liquid Sand Timer $23.99 End Date: Tuesday Jun-19-2012 10:16:13 PDT Buy It Now for only: $23.99 |
 Big blue glass Hourglass sand clock watch Timer 30Min $35.99 End Date: Monday Jun-18-2012 8:30:53 PDT Buy It Now for only: $35.99 |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.00 End Date: Monday May-28-2012 10:11:30 PDT Buy It Now for only: $1.00 |
 30 min Sand Timer Hour Glass Home Decor sand clock Hour CA $19.99 End Date: Saturday May-26-2012 18:26:14 PDT |
 5 Minutes Hourglass Sandglass Sand Timer Shocking Pink $3.85 End Date: Wednesday Jun-6-2012 7:34:16 PDT Buy It Now for only: $3.85 |
 MODERN GLASS SAND TIMER 60 MINUTE WHITE SAND NEW NIB $23.25 End Date: Monday Jun-18-2012 12:07:20 PDT Buy It Now for only: $23.25 |
 VINTAGE LOT OF BANK SANDGLASS HOUR GLASS TIMERS W TIME TO SAVE LABELS 3 MINUTE $9.90 End Date: Monday Jun-4-2012 20:34:32 PDT Buy It Now for only: $9.90 |
 MIni 5 Minute Sand Timer Hourglass Sandglass Home Favor $3.39 End Date: Friday Jun-15-2012 20:44:11 PDT Buy It Now for only: $3.39 |
 Hourglass Sandglass Sand Timer 60 Second 1 Minute Home $1.39 End Date: Friday May-25-2012 19:10:50 PDT Buy It Now for only: $1.39 |
 ANTIQUE VINTAGE MAGIC TRICK HOURGLASS HOUR GLASS CLOCK PLASTIC SAND TIMER $45.12 End Date: Thursday May-24-2012 15:01:03 PDT Buy It Now for only: $45.12 |
 Sand Timer Hour Glass Home Decor Modern olive New 11 $70.00 End Date: Sunday May-27-2012 16:23:19 PDT Buy It Now for only: $70.00 |
 MODERN GLASS SAND TIMER TALL 30 MINUTE WHITE SAND NEW $23.25 End Date: Tuesday Jun-19-2012 11:38:28 PDT Buy It Now for only: $23.25 |
 2 Minute Home Hourglass Sandglass Sand Timer 120 Second $3.99 End Date: Friday Jun-15-2012 8:09:06 PDT Buy It Now for only: $3.99 |
 Hourglass Sandglass 30 Minute Timer Beautiful Octagon Glass WHITE Sand $16.95 End Date: Monday Jun-4-2012 11:22:42 PDT Buy It Now for only: $16.95 |
 Old World Tuscan Wood Metal Hour Glass Sand Timer $49.99 End Date: Sunday Jun-10-2012 18:39:40 PDT Buy It Now for only: $49.99 |
Right. So how do you calibrate an egg timer?
I mean, it's not as if glass blowing, stretching, twisting, whatever it is they do, is an exact science. Grains of sand are also a wee bit random. So how do they actually figure out how long three minutes is? Do they have a special calibrated sand scoop? Or do they have to manually test each one in a lab as it comes off the production line? And if they do that, why aren't egg timers more expensive?
With an "Ooidal chronometer"
