284:
309:
256:
214:
447:
67:
129:
built this antenna beginning April 1901 to transmit the first transatlantic radio message to Canada. It consisted of 20 thin wooden masts in a circle supporting 200 wires in an inverted cone shape attached to the transmitter building. However on
September 17, 1901 the antenna collapsed in a storm.
294:
This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as
269:. Please use this template only if the author never claimed authorship or their authorship never became public in any other way. If the work is anonymous or pseudonymous (e.g., published only under a corporate or organization's name), use this template for images published more than 70 years ago.
38:
186:
because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
464:== {{int:filedesc}} == {{Information |Description={{en|The Marconi Company first antenna system at Poldhu, Cornwall}} |Source=Archive of Marconi Corporation, PLC |Date=1901 |Author={{unknown|author}} }} == {{int:license-header}} == {{PD-scan|Anonymous...
46:
78:
130:
Marconi quickly built a replacement antenna consisting of 54 wires in an inverted pyramid shape supported by 4 sturdy wooden towers. On 12 December 1901 Marconi reported the first transatlantic radio transmission from Poldhu to
266:
265:
In
Germany and possibly other countries, certain anonymous works published before July 1, 1995 are copyrighted until 70 years after the death of the author. See
446:
441:
37:
243:
and those countries with a copyright term of 70 years after the work was made available to the public and the author never disclosed their identity.
300:
320:
378:
361:
250:: Always mention where the image comes from, as far as possible, and make sure the author never claimed authorship.
315:
Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar,
295:
when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate
131:
474:
The following pages on the
English Knowledge (XXG) use this file (pages on other projects are not listed):
478:
273:
86:
126:
121:
The first
Marconi Company antenna system at its transatlantic radiotelegraphy station at
223:
182:
73:
175:
316:
296:
240:
111:
The
Marconi Company first antenna system at Poldhu, Cornwall, December 1901.jpg
47:
The_Marconi_Company_first_antenna_system_at_Poldhu,_Cornwall,_December_1901.jpg
345:
Antenna of
Marconi's transatlantic transmitter at Poldhu, Cornwall, UK in 1901
457:
272:
For a work made available to the public in the United
Kingdom, please use
143:
122:
414:
Click on a date/time to view the file as it appeared at that time.
496:
208:
61:
307:
105:
85:
Commons is a freely licensed media file repository.
51:(686 × 571 pixels, file size: 110 KB, MIME type:
66:
8:
221:This image (or other media file) is in the
416:
341:
188:
489:The following other wikis use this file:
476:
392:
376:
359:
356:
337:
330:
283:
213:
7:
405:
301:Commons:When to use the PD-scan tag
153:Archive of Marconi Corporation, PLC
350:
344:
321:Commons:When to use the PD-Art tag
260:
219:
179:
115:
98:
44:
349:
335:
282:
254:
212:
65:
31:
21:
332:
116:
41:No higher resolution available.
14:
331:
26:
1:
357:Items portrayed in this file
299:tag instead. For usage, see
515:
493:Usage on de.wikipedia.org
227:because its copyright has
406:
134:a distance of 2300 miles.
16:
334:
72:This is a file from the
463:
319:may be applicable. See
157:
149:
142:
139:
108:
76:. Information from its
312:
274:Template:PD-UK-unknown
79:description page there
479:Spark-gap transmitter
311:
180:This image is in the
239:This applies to the
442:20:06, 5 April 2016
313:
231:and its author is
497:Guglielmo Marconi
485:Global file usage
467:
343:
329:
328:
324:
304:
290:
289:
279:
207:
206:
168:
167:
127:Guglielmo Marconi
125:, Cornwall, UK.
94:
93:
74:Wikimedia Commons
32:Global file usage
506:
454:
314:
310:
293:
286:
285:
259:
258:
257:
216:
215:
209:
203:
200:
197:
194:
189:
176:
164:
145:
120:
112:
106:
90:
69:
68:
62:
56:
54:
514:
513:
509:
508:
507:
505:
504:
503:
483:
475:
468:
460:
452:
408:
407:
404:
403:
402:
401:
400:
399:
398:
397:
395:
385:
384:
383:
381:
370:
369:
368:
367:
366:
364:
348:
347:
346:
325:
308:
278:
255:
252:
201:
198:
195:
192:
174:
169:
162:
135:
110:
103:
96:
95:
84:
83:
82:is shown below.
58:
52:
50:
43:
42:
12:
11:
5:
512:
510:
502:
501:
500:
499:
487:
486:
482:
481:
473:
472:
471:
466:
465:
462:
458:
455:
449:
444:
439:
435:
434:
431:
428:
425:
422:
419:
412:
411:
396:
393:
391:
390:
389:
388:
387:
386:
382:
377:
375:
374:
373:
372:
371:
365:
360:
358:
355:
354:
353:
352:
351:
340:
339:
336:
333:
327:
326:
288:
287:
280:
267:Übergangsrecht
241:European Union
217:
205:
204:
173:
170:
166:
165:
163:Unknown author
161:Unknown author
159:
155:
154:
151:
147:
146:
141:
137:
136:
113:
104:
102:
99:
97:
92:
91:
70:
60:
59:
40:
36:
35:
34:
29:
24:
19:
13:
10:
9:
6:
4:
3:
2:
511:
498:
495:
494:
492:
491:
490:
484:
480:
477:
469:
461:
456:
450:
448:
445:
443:
440:
437:
436:
432:
429:
426:
423:
420:
418:
417:
415:
409:
380:
363:
322:
318:
306:
305:
302:
298:
291:
281:
277:
275:
270:
268:
264:
253:
251:
249:
245:
244:
242:
237:
236:
234:
230:
226:
225:
224:public domain
218:
211:
210:
196:Public domain
193:Public domain
191:
190:
185:
184:
183:public domain
178:
177:
171:
160:
156:
152:
148:
138:
133:
128:
124:
119:
114:
107:
100:
88:
81:
80:
75:
71:
64:
63:
57:
48:
39:
33:
30:
28:
25:
23:
20:
18:
15:
488:
413:
410:File history
292:
271:
262:
261:
247:
246:
238:
232:
228:
222:
220:
181:
117:
87:You can help
77:
45:
22:File history
109:Description
470:File usage
451:686 × 571
427:Dimensions
317:{{PD-Art}}
297:{{PD-old}}
53:image/jpeg
27:File usage
424:Thumbnail
421:Date/Time
379:inception
248:Important
233:anonymous
172:Licensing
118:English:
453:(110 KB)
338:Captions
276:instead.
132:St. John
438:current
433:Comment
362:depicts
342:English
229:expired
101:Summary
49:
158:Author
150:Source
123:Poldhu
263:Note:
202:false
199:false
459:Wdwd
430:User
394:1901
144:1901
140:Date
17:File
323:.
303:.
235:.
89:.
55:)
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
