The watt, a unit of power in the International System of Units, is named after James Watt, the Scottish inventor who vastly improved the efficiency of steam engines in the 18th century. One watt is equivalent to one joule of energy per second, signifying how much energy is transferred or converted. Interestingly, a single watt is roughly the amount of power used by a human heart, pumping about 80 milliliters of blood per beat with a resting heart rate.
In our technology-driven society, watts are pivotal in understanding the energy consumption of electrical devices. For instance, a typical LED light bulb uses about 10 watts, significantly less than an incandescent bulb, highlighting the watt’s role in energy conservation. Moreover, the watt powers our world: everything from the brightness of light bulbs to the performance of supercomputers is measured in watts, underlining its importance in both everyday life and cutting-edge technology.
The foot-pound per second is an intriguing unit of power that encapsulates the essence of energy transfer in mechanical systems. A single foot-pound per second equates to the rate at which one pound-force transfers energy across a distance of one foot in a second. Lesser-known than its metric counterpart, the watt, foot-pound per second offers insight into the blend of force, distance, and time that’s crucial to understanding mechanical work.
Interestingly, the unit serves as a bridge between imperial and metric systems, with one foot-pound per second equivalent to approximately 1.3558 watts. This conversion showcases the interconnectedness of diverse measurement systems. The unit highlights the ingenuity of early inventors and engineers like James Watt, whose advancements in engine technology continue to influence how we conceptualize power and efficiency today.
| Watts | Foot-pounds per second |
|---|---|
0
W
|
0
ft-lb/s
|
10
W
|
7.37562
ft-lb/s
|
20
W
|
14.75124
ft-lb/s
|
30
W
|
22.12686
ft-lb/s
|
40
W
|
29.50249
ft-lb/s
|
50
W
|
36.87811
ft-lb/s
|
60
W
|
44.25373
ft-lb/s
|
70
W
|
51.62935
ft-lb/s
|
80
W
|
59.00497
ft-lb/s
|
90
W
|
66.38059
ft-lb/s
|
100
W
|
73.75621
ft-lb/s
|
110
W
|
81.13184
ft-lb/s
|
120
W
|
88.50746
ft-lb/s
|
130
W
|
95.88308
ft-lb/s
|
140
W
|
103.2587
ft-lb/s
|
150
W
|
110.63432
ft-lb/s
|
160
W
|
118.00994
ft-lb/s
|
170
W
|
125.38557
ft-lb/s
|
180
W
|
132.76119
ft-lb/s
|
190
W
|
140.13681
ft-lb/s
|
200
W
|
147.51243
ft-lb/s
|
210
W
|
154.88805
ft-lb/s
|
220
W
|
162.26367
ft-lb/s
|
230
W
|
169.63929
ft-lb/s
|
240
W
|
177.01492
ft-lb/s
|
250
W
|
184.39054
ft-lb/s
|
260
W
|
191.76616
ft-lb/s
|
270
W
|
199.14178
ft-lb/s
|
280
W
|
206.5174
ft-lb/s
|
290
W
|
213.89302
ft-lb/s
|
300
W
|
221.26864
ft-lb/s
|
310
W
|
228.64427
ft-lb/s
|
320
W
|
236.01989
ft-lb/s
|
330
W
|
243.39551
ft-lb/s
|
340
W
|
250.77113
ft-lb/s
|
350
W
|
258.14675
ft-lb/s
|
360
W
|
265.52237
ft-lb/s
|
370
W
|
272.898
ft-lb/s
|
380
W
|
280.27362
ft-lb/s
|
390
W
|
287.64924
ft-lb/s
|
400
W
|
295.02486
ft-lb/s
|
410
W
|
302.40048
ft-lb/s
|
420
W
|
309.7761
ft-lb/s
|
430
W
|
317.15172
ft-lb/s
|
440
W
|
324.52735
ft-lb/s
|
450
W
|
331.90297
ft-lb/s
|
460
W
|
339.27859
ft-lb/s
|
470
W
|
346.65421
ft-lb/s
|
480
W
|
354.02983
ft-lb/s
|
490
W
|
361.40545
ft-lb/s
|
500
W
|
368.78107
ft-lb/s
|
510
W
|
376.1567
ft-lb/s
|
520
W
|
383.53232
ft-lb/s
|
530
W
|
390.90794
ft-lb/s
|
540
W
|
398.28356
ft-lb/s
|
550
W
|
405.65918
ft-lb/s
|
560
W
|
413.0348
ft-lb/s
|
570
W
|
420.41042
ft-lb/s
|
580
W
|
427.78605
ft-lb/s
|
590
W
|
435.16167
ft-lb/s
|
600
W
|
442.53729
ft-lb/s
|
610
W
|
449.91291
ft-lb/s
|
620
W
|
457.28853
ft-lb/s
|
630
W
|
464.66415
ft-lb/s
|
640
W
|
472.03978
ft-lb/s
|
650
W
|
479.4154
ft-lb/s
|
660
W
|
486.79102
ft-lb/s
|
670
W
|
494.16664
ft-lb/s
|
680
W
|
501.54226
ft-lb/s
|
690
W
|
508.91788
ft-lb/s
|
700
W
|
516.2935
ft-lb/s
|
710
W
|
523.66913
ft-lb/s
|
720
W
|
531.04475
ft-lb/s
|
730
W
|
538.42037
ft-lb/s
|
740
W
|
545.79599
ft-lb/s
|
750
W
|
553.17161
ft-lb/s
|
760
W
|
560.54723
ft-lb/s
|
770
W
|
567.92285
ft-lb/s
|
780
W
|
575.29848
ft-lb/s
|
790
W
|
582.6741
ft-lb/s
|
800
W
|
590.04972
ft-lb/s
|
810
W
|
597.42534
ft-lb/s
|
820
W
|
604.80096
ft-lb/s
|
830
W
|
612.17658
ft-lb/s
|
840
W
|
619.55221
ft-lb/s
|
850
W
|
626.92783
ft-lb/s
|
860
W
|
634.30345
ft-lb/s
|
870
W
|
641.67907
ft-lb/s
|
880
W
|
649.05469
ft-lb/s
|
890
W
|
656.43031
ft-lb/s
|
900
W
|
663.80593
ft-lb/s
|
910
W
|
671.18156
ft-lb/s
|
920
W
|
678.55718
ft-lb/s
|
930
W
|
685.9328
ft-lb/s
|
940
W
|
693.30842
ft-lb/s
|
950
W
|
700.68404
ft-lb/s
|
960
W
|
708.05966
ft-lb/s
|
970
W
|
715.43528
ft-lb/s
|
980
W
|
722.81091
ft-lb/s
|
990
W
|
730.18653
ft-lb/s
|
1000
W
|
737.56215
ft-lb/s
|
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