Handle Robot Reimagined for Logistics
Handle is a mobile manipulation robot designed for logistics. Handle autonomously performs mixed SKU pallet building and depalletizing after initialization and localizing against the pallets. The on-board vision system on Handle tracks the marked pallets for navigation and finds individual boxes for grasping and placing.
When Handle places a boxes onto a pallet, it uses force control to nestle each box up against its neighbors. The boxes used in the video weigh about 5 Kg (11 lbs), but the robot is designed to handle boxes up to (15 Kg) (33 lb). This version of Handle works with pallets that are 1.2 m deep and 1.7 m tall (48 inches deep and 68 inches tall).
Electric tram | Wikipedia audio article
This is an audio version of the Wikipedia Article:
00:02:17 1 Etymology and terminology
00:05:32 2 History
00:05:55 2.1 Horse-drawn
00:11:47 2.2 Steam
00:13:56 2.3 Cable-hauled
00:18:42 2.4 Gas
00:20:41 2.5 Electric
00:29:45 2.6 Other power sources
00:30:00 2.6.1 Battery
00:31:14 2.6.2 Human Power
00:32:13 2.6.3 Liquid fuel
00:33:03 2.6.4 Compressed air
00:33:18 2.6.5 Hydrogen
00:33:50 2.6.6 Hybrid
00:34:36 2.7 Modern development
00:35:27 3 Design
00:35:35 3.1 Single-ended vs double-ended
00:38:14 3.2 Articulated
00:39:42 3.3 Double decker
00:40:59 3.4 Drop-Centre (lowered central section)
00:41:49 3.5 Low floor
00:44:10 3.5.1 Ultra low floor
00:45:02 3.5.2 Pivoting bogie
00:45:47 3.6 Tram-train
00:46:44 3.7 Cargo tram
00:49:50 3.8 Tourist tram
00:50:24 3.9 Nursery tram
00:50:54 3.10 Hearse tram
00:52:19 3.11 Dog car
00:52:45 3.12 Restaurant tram
00:54:20 3.13 Mobile library service
00:54:59 3.14 Contractors' mobile office
00:55:28 3.15 Maintenance tram
00:56:23 3.16 Rubber-tyred tram
00:57:16 3.17 Other designs
00:57:24 3.17.1 Modular design
00:58:11 3.17.2 Modern styling
00:58:37 4 Operation
00:59:14 4.1 Track
01:01:19 4.2 Track gauge
01:02:31 4.3 Power supply
01:04:02 4.3.1 Ground-level power supply
01:05:12 4.4 Tram stop
01:05:47 4.5 Route
01:09:36 4.6 Controls
01:10:11 5 Manufacturing
01:10:39 6 Advantages
01:12:32 7 Disadvantages
01:14:14 8 By region
01:16:30 8.1 Statistics
01:19:28 8.2 Major tram and light rail systems
01:31:17 8.3 Africa
01:31:25 8.4 Asia
01:34:25 8.5 Europe
01:35:24 8.6 North America
01:39:17 8.7 Oceania
01:43:53 8.8 South America
01:45:09 9 Incidents
01:47:53 10 Tram modelling
01:50:39 11 In popular culture
01:50:54 11.1 Literature
01:57:59 11.2 Music
01:59:28 11.3 Film
02:02:44 11.4 Television
02:03:33 11.5 Visual arts
02:05:42 11.6 Drama
02:06:12 11.7 Ballet
02:06:29 11.8 Opera
02:06:45 11.9 Other
02:07:54 12 See also
02:08:03 12.1 Tram types
02:08:12 12.2 Trams by region
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SUMMARY
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A tram (in North America streetcar or trolley) is a rail vehicle which runs on tramway tracks along public urban streets; some include segments of segregated right-of-way. The lines or networks operated by tramcars are called tramways. Historically the term electric street railways was also used in the United States. In the United States, the term tram has sometimes been used for rubber-tyred trackless trains, which are not related to the other vehicles covered in this article.
Tram vehicles are usually lighter and shorter than main line and rapid transit trains. Today, most trams use electrical power, usually fed by a pantograph sliding on an overhead line; older systems may use a trolley pole or a bow collector. In some cases by a contact shoe on a third rail is used. If necessary, they may have dual power systems—electricity in city streets, and diesel in more rural environments. Occasionally, trams also carry freight.
Trams are now commonly included in the wider term light rail, which also includes grade-separated systems. Some trams, known as tram-trains, may have segments that run on mainline railway tracks, similar to interurban systems. The differences between these modes of rail transport are often indistinct, and a given system may combine multiple features.
One of the advantages over earlier forms of transit was the low rolling resistance of metal wheels on steel rails, allowing the animals to haul a greater load for a given effort. Problems included the fact that any given animal could only work so many hours on a given day, had to be housed, groomed, fed and cared for day in and day out, and produced prodigious amounts of manure, which the streetcar company was charged with disposing of. Electric trams largely replaced animal power in the late 19th and early 20th century. Improvements in other forms of road transport ...