logs_raphael_bismuth
Gestionnaire Multimédia
Catégories
Choisissez une catégorie
Sélection de fichiers
- Sélection de fichiers
- Envoyer
- Rechercher
Fichiers dans media_12
- git_commits_tree_branches_tags.png
- 1024×596
- 2024/03/21 15:40
- 70.2 KB
- git_diff_sample_2.png
- 770×380
- 2024/03/21 16:06
- 50.3 KB
- git_diff_sample.png
- 784×385
- 2024/03/21 16:03
- 51.1 KB
- git_index_tree_blob.png
- 1024×669
- 2024/03/21 15:40
- 100.5 KB
- git_layers_and_commands.jpg
- 481×455
- 2024/03/21 15:40
- 48.9 KB
- git_merge_vs_rebase.jpeg
- 800×992
- 2024/03/21 16:13
- 70.9 KB
- gitflow_1.webp
- 658×464
- 2024/03/21 16:25
- 35.5 KB
- marche_20hz_detail_1s.png
- 231×732
- 2020/12/01 17:52
- 6.5 KB
- marche_20hz_detail.png
- 2000×1000
- 2020/12/01 17:47
- 51.7 KB
- marche_20hz.png
- 2000×1000
- 2020/12/01 17:34
- 485 KB
- pinephone-3.jpg
- 1024×1024
- 2020/11/09 11:16
- 129.9 KB
- pseshsf2016-eolienne-001.jpg
- 640×480
- 2018/07/31 12:48
- 77.9 KB
- pseshsf2016-eolienne-002.jpg
- 640×480
- 2018/07/31 12:48
- 49.5 KB
- pseshsf2016-eolienne-003.jpg
- 640×480
- 2018/07/31 12:48
- 81.1 KB
- pseshsf2016-eolienne-004.jpg
- 640×480
- 2018/07/31 12:48
- 69.5 KB
- pseshsf2016-eolienne-005.jpg
- 640×480
- 2018/07/31 12:48
- 72.9 KB
- pseshsf2016-eolienne-006.jpg
- 640×480
- 2018/07/31 12:48
- 73.9 KB
- pseshsf2016-eolienne-007.jpg
- 360×480
- 2018/07/31 12:48
- 55.7 KB
- pseshsf2016-eolienne-008.jpg
- 640×480
- 2018/07/31 12:48
- 54.2 KB
- pseshsf2016-eolienne-009.jpg
- 640×480
- 2018/07/31 12:48
- 71.2 KB
- pseshsf2016-eolienne-010.jpg
- 360×480
- 2018/07/31 12:48
- 53 KB
- public_services_activated-650x421.png
- 650×421
- 2018/07/28 09:42
- 110.5 KB
- pulse_1.png
- 225×240
- 2018/07/19 07:46
- 158.8 KB
- pulse_2.png
- 1222×572
- 2018/07/19 07:46
- 47.1 KB
- pulse_3.png
- 1037×426
- 2018/07/19 07:46
- 40.5 KB
- pure-data-logo.jpg
- 228×219
- 2018/04/01 11:47
- 19.1 KB
- puredata_initiation_fr.png
- 794×595
- 2018/07/29 13:22
- 227.5 KB
- puredata-configuring-path.png
- 404×328
- 2018/03/22 08:23
- 14.6 KB
- purr-data-librairies.png
- 502×557
- 2020/10/05 10:46
- 30.5 KB
- pygame.tar.gz
- 2019/10/17 15:06
- 4.9 KB
- qjackctlconfigfasttrackpro-m-audio.png
- 1012×551
- 2019/01/18 22:54
- 67 KB
- qrcodewikilabomedia.png
- 420×420
- 2018/07/29 08:33
- 565 B
- qsstv-et.png
- 855×543
- 2020/04/26 23:11
- 332.7 KB
- qt_gui.zip
- 2020/09/11 14:11
- 8.1 MB
- question_doku.png
- 400×100
- 2019/11/11 23:40
- 4.1 KB
- r2b.jpg
- 1080×720
- 2020/02/21 14:27
- 387.2 KB
- radeau.jpg
- 800×533
- 2018/05/29 15:36
- 75.2 KB
- radio-communication-threats-response-trendmicro.png
- 1024×848
- 2019/01/30 14:47
- 579.5 KB
- radio-communication-threats-trendmicro.jpg
- 650×415
- 2019/01/30 14:44
- 92.9 KB
- raspberry_2bhdmi-extractor.jpg
- 900×506
- 2018/08/29 10:19
- 78 KB
- raspberry_2bhdmi-extractor2.jpg
- 900×506
- 2018/08/29 10:19
- 90.3 KB
- raspberry_2bhdmi-extractor3.jpg
- 900×506
- 2018/08/29 10:19
- 70.3 KB
- raspberry_pi_3b.jpg
- 800×569
- 2018/04/10 16:07
- 150.6 KB
- raspbianstretch.png
- 1024×768
- 2018/07/27 09:42
- 735.9 KB
- rc-diffusion-dev03-rc00.pdf
- 2018/07/16 12:32
- 147 KB
- recalbox.png
- 1280×720
- 2018/07/27 09:42
- 335.3 KB
- recaptcha-sarahconnor.jpg
- 496×706
- 2018/07/28 09:50
- 57.1 KB
- recaptchaaidrone.png
- 415×700
- 2018/07/28 09:50
- 307.3 KB
- recepteur-sdr.jpg
- 600×600
- 2018/07/28 09:44
- 29.8 KB
- recevoir_osc_socket.zip
- 2018/07/19 15:05
- 50.8 KB
- recoverybyhandterminal.png
- 960×540
- 2018/12/27 15:50
- 45.3 KB
- recysp_nuit.jpg
- 1378×2077
- 2018/09/05 15:28
- 1.2 MB
- regleur-entrefer-ci-1.jpg
- 360×480
- 2018/07/31 12:48
- 45.7 KB
- regleur-entrefer-ci-2.jpg
- 360×480
- 2018/07/31 12:48
- 41.5 KB
- releve-glanage_17_25-03-18.ods
- 2019/02/24 19:25
- 6.4 MB
- relu.jpg
- 1026×467
- 2019/05/09 06:18
- 32.1 KB
- remove.jpg
- 2193×1619
- 2018/03/27 15:03
- 889 KB
- render.png
- 774×513
- 2018/08/03 17:02
- 61.8 KB
- renommer_1.png
- 540×445
- 2018/10/17 09:20
- 27.9 KB
- renommer_2.png
- 1239×324
- 2018/10/17 09:20
- 22.7 KB
- reparation_lampe_dino.pdf
- 2020/07/21 15:56
- 536.5 KB
- replaceresin-01.jpg
- 640×480
- 2018/07/31 12:48
- 46.3 KB
- replaceresin-02.jpg
- 640×480
- 2018/07/31 12:48
- 57.5 KB
- replaceresin-03.jpg
- 360×480
- 2018/07/31 12:48
- 33.3 KB
- replaceresin-04.jpg
- 360×480
- 2018/07/31 12:48
- 44.6 KB
- replaceresin-05.jpg
- 640×480
- 2018/07/31 12:49
- 53.4 KB
- replaceresin-06.jpg
- 640×480
- 2018/07/31 12:49
- 59.7 KB
- replaceresin-07.jpg
- 640×480
- 2018/07/31 12:49
- 64.1 KB
- rescan_repdepartage.png
- 644×364
- 2018/07/28 16:16
- 26.6 KB
- reseau_shema_principe.svg
- 2018/05/01 07:27
- 34.3 KB
- rezobox_montage_1.jpg
- 2448×2282
- 2019/01/01 14:22
- 659.5 KB
- rezobox_montage_2.jpg
- 3264×2304
- 2019/01/01 14:23
- 848 KB
- rezobox_montage_3.jpg
- 3074×3456
- 2019/01/01 14:23
- 1.6 MB
- rezobox_montage_4.jpg
- 2333×3020
- 2019/01/01 14:23
- 333.7 KB
- rezobox_montage_5.jpg
- 3702×2383
- 2019/01/01 14:24
- 1.6 MB
- rezobox_reglage_1.jpg
- 2596×1836
- 2019/01/01 14:24
- 1.9 MB
- rezobox_reglage_2.jpg
- 4136×2960
- 2019/01/01 14:25
- 2.5 MB
- rezobox_rendu_1.jpg
- 3264×2448
- 2019/01/01 14:25
- 1.4 MB
- rezobox_rendu_2.jpg
- 4279×2898
- 2019/01/01 14:26
- 3.3 MB
- rezobox_rendu_3.jpg
- 4362×2421
- 2019/01/01 14:26
- 2.1 MB
- rfamp.jpg
- 1000×673
- 2018/07/29 13:38
- 51.3 KB
- rgpdinfographie.jpeg
- 1650×1153
- 2018/07/28 09:50
- 348.6 KB
- richardstallman.jpeg
- 1395×1395
- 2018/07/28 09:50
- 143.7 KB
- rig_labeled.png
- 1498×1420
- 2018/07/28 09:45
- 1.2 MB
- robot.jpg
- 1006×479
- 2018/06/04 14:40
- 46.8 KB
- roli-13128661_800.jpg
- 800×448
- 2019/04/01 17:00
- 48.3 KB
- rotor-1-cncresult.jpg
- 640×480
- 2018/07/31 12:49
- 62.5 KB
- rotor-1-colle.jpg
- 360×480
- 2018/07/31 12:49
- 49.6 KB
- rotor-1-encollage.jpg
- 360×480
- 2018/07/31 12:49
- 41.9 KB
- rotor-1-entoilage.jpg
- 360×480
- 2018/07/31 12:49
- 43 KB
- rotor-1-galette-martienne.jpg
- 360×480
- 2018/07/31 12:49
- 46.6 KB
- rotor-1-heeks.png
- 1272×791
- 2018/07/31 12:49
- 167.9 KB
- rotor-1-linuxcnc.png
- 1280×1024
- 2018/07/31 12:49
- 119.4 KB
- rotor-2-galette-martienne.jpg
- 360×480
- 2018/07/31 12:49
- 43.4 KB
- rotor4aimants-001.jpg
- 640×480
- 2018/07/31 12:49
- 69.3 KB
- rotor4aimants-002.jpg
- 640×480
- 2018/07/31 12:49
- 73.9 KB
- rotor4aimants-003.jpg
- 640×480
- 2018/07/31 12:49
- 89.8 KB
- rotors-secs.jpg
- 360×480
- 2018/07/31 12:49
- 34.3 KB
- rotors-vernis.jpg
- 640×480
- 2018/07/31 12:49
- 58.7 KB
- rouedentee2.png
- 954×616
- 2018/09/26 12:26
- 80.4 KB
- roulementapallieraudecollage.jpg
- 360×480
- 2018/07/31 12:49
- 44.6 KB
- royer-2-1.jpg
- 400×511
- 2018/07/28 07:08
- 90.5 KB
- royer-2-2.jpg
- 400×548
- 2018/07/28 07:08
- 98 KB
- royer-2-3.jpg
- 400×362
- 2018/07/28 07:08
- 53.7 KB
- royer2-1-1.jpg
- 400×430
- 2018/07/28 07:07
- 53.8 KB
- royer2-1-oscb.jpg
- 794×636
- 2018/07/28 07:08
- 206.4 KB
- rp_bottom_view.png
- 555×778
- 2018/09/28 14:50
- 19.1 KB
- rs-232c_protocol_sscdr250n_v1.10_e.pdf
- 2020/10/12 19:30
- 562.6 KB
- s_j_to_i_122.png
- 416×416
- 2019/10/28 07:52
- 198.5 KB
- s_j_to_i_537.jpg
- 416×416
- 2019/10/21 11:33
- 102.6 KB
- s_j_to_i_593.jpg
- 416×416
- 2019/10/21 11:30
- 41.8 KB
- s_j_to_i_721.jpg
- 416×416
- 2019/10/21 11:36
- 64.3 KB
- s_j_to_i_849.jpg
- 416×416
- 2019/10/21 11:35
- 41.4 KB
- s_j_to_i_924.jpg
- 416×416
- 2019/10/22 14:09
- 108.5 KB
- sacn1.png
- 1600×962
- 2018/07/04 19:41
- 73.6 KB
- sandstormio.png
- 1761×750
- 2018/07/28 07:13
- 167.4 KB
- sans-preamp.png
- 683×608
- 2018/07/11 09:52
- 40.6 KB
- sarah-zee.jpeg
- 377×480
- 2018/06/19 14:15
- 68.7 KB
- savonius-moteur-arduino-10.001.jpg
- 640×480
- 2018/07/31 12:49
- 61.8 KB
- savonius-moteur-arduino-10.002.jpg
- 640×480
- 2018/07/31 12:49
- 59.2 KB
- savonius-moteur-arduino-10.003.jpg
- 640×480
- 2018/07/31 12:49
- 64.3 KB
- savonius-moteur-arduino-10.004.jpg
- 640×480
- 2018/07/31 12:49
- 48.9 KB
- savonius-moteur-arduino-10.005.jpg
- 480×640
- 2018/07/31 12:49
- 44.7 KB
- savonius-moteur-arduino-10.006.jpg
- 640×480
- 2018/07/31 12:49
- 77.7 KB
- savonius-moteur-arduino-10.007.jpg
- 640×480
- 2018/07/31 12:49
- 69.9 KB
- schema_bobine.png
- 960×954
- 2018/03/27 14:58
- 44.2 KB
- schema_des_panneaux_installation.jpg
- 2373×3093
- 2019/05/24 13:48
- 2 MB
- schema_pour_arduino_et_relais.png
- 704×552
- 2018/07/31 12:49
- 59.9 KB
- schemaastroflux.png
- 1443×678
- 2018/07/26 07:54
- 61.8 KB
- schemacontrole.png
- 909×549
- 2018/03/27 15:08
- 37.7 KB
- schumann_hammer-800px-01.jpg
- 800×1067
- 2018/07/28 16:20
- 276 KB
- scratch-screenshot1.gif
- 1278×983
- 2018/07/27 15:51
- 155.6 KB
- scratch.jpg
- 1024×768
- 2018/07/29 11:47
- 220.8 KB
- scratchico.png
- 48×48
- 2018/07/27 15:51
- 3.3 KB
- screen_godot.png
- 543×599
- 2018/08/03 17:02
- 15.8 KB
- screengrabicecream.png
- 628×637
- 2019/07/21 11:34
- 142.5 KB
- screenmanager1.png
- 1127×635
- 2018/03/22 14:46
- 15.1 KB
- screenshot_20190903-204709_gallery.jpg
- 1077×1293
- 2019/10/07 21:21
- 938 KB
- screenshot540-now_playing_250.png
- 595×455
- 2018/07/28 16:16
- 142.5 KB
- screenshotetcher.gif
- 800×382
- 2018/10/21 12:32
- 238.2 KB
- secchi.png
- 345×299
- 2020/02/20 14:15
- 12.6 KB
- sema_gaziel_kit_3d.png
- 759×593
- 2018/11/13 17:36
- 68.8 KB
- semaphore_am.png
- 406×451
- 2019/01/15 11:10
- 62.4 KB
- semaphore_gaz_support_ecran.jpg
- 353×318
- 2018/11/27 18:08
- 16.1 KB
- semaphore_jetson_nano_1.jpg
- 3264×2448
- 2019/06/27 07:33
- 275.6 KB
- semaphore_jetson_nano_2.jpg
- 3264×2448
- 2019/06/27 07:33
- 359.1 KB
- semaphore_simple.zip
- 2019/05/03 06:59
- 331.4 KB
- semaphore.svg
- 2018/11/13 17:54
- 39.1 KB
- semaphore2.pde
- 2018/11/13 18:17
- 1.7 KB
- semaphore05.zip
- 2018/11/27 18:10
- 1.6 KB
- semaphoresimplegazielassemblage.png
- 633×627
- 2019/02/14 12:53
- 15.5 KB
- semaphoresimplegazielprintable.png
- 1137×667
- 2019/02/14 12:56
- 41.9 KB
- server.zip
- 2020/09/14 10:07
- 20.7 KB
- setup.py
- 2018/07/12 16:09
- 1.7 KB
- sftp-raspberry.png
- 759×35
- 2018/03/23 13:12
- 6.9 KB
- shakespdrama.jpg
- 1024×768
- 2018/07/29 12:08
- 365.8 KB
- shema-lm317.jpg
- 1861×868
- 2018/07/31 12:49
- 315 KB
- shinypoopy_01.jpg
- 3264×2448
- 2020/04/05 19:55
- 4.9 MB
- shooksmall.png
- 100×58
- 2018/08/03 17:02
- 4.3 KB
- shutter_test1.mp4
- 2020/03/22 17:21
- 22.8 MB
- sigmoid.png
- 872×425
- 2019/05/09 06:22
- 95.7 KB
- silence2020-02-25_17-33-59.png
- 1020×681
- 2020/02/25 16:34
- 730.4 KB
- simple_osc_in_blender.zip
- 2018/07/19 15:11
- 179.8 KB
- simple_raspberrypi_display.zip
- 2020/09/28 20:00
- 9.6 KB
- simple_raspberrypi_display02102020.zip
- 2020/10/02 17:07
- 11.9 KB
- single_coil_string_anim.gif
- 320×240
- 2018/09/28 15:19
- 312.4 KB
- skattak00100019.jpg
- 800×600
- 2018/07/29 12:31
- 350.9 KB
- sku_452042_1.jpg
- 700×700
- 2019/04/27 09:38
- 64.8 KB
- sky-ear-_e2_80_93-usman-haque-angleterre-2004-784x521.jpg
- 784×521
- 2018/07/26 16:45
- 106.6 KB
- slimg_3802_full.jpg
- 978×666
- 2018/07/29 12:37
- 206.7 KB
- slimg_3805_full.jpg
- 1000×667
- 2018/07/29 12:37
- 73.8 KB
- slimg_3871_full.jpg
- 1000×667
- 2018/07/29 12:37
- 145.7 KB
- slingshots.jpg
- 600×803
- 2018/03/27 14:58
- 122.9 KB
- smartblock_world.png
- 1899×508
- 2018/07/28 16:16
- 102.8 KB
- smartcitizen_1.png
- 721×1283
- 2020/01/30 09:07
- 32 KB
- smartcitizen_2.png
- 727×1293
- 2020/01/28 09:29
- 73.9 KB
- smartcitizen_3.png
- 727×1286
- 2020/01/28 09:29
- 41.9 KB
- smartcitizen-kitv2-47950912168_fcf8fa398c_h.jpg
- 1600×900
- 2020/11/09 22:19
- 174.2 KB
- smartcitizen.apk
- 2020/02/16 08:16
- 12.4 MB
- smellie.jpg
- 800×1170
- 2019/12/19 14:11
- 199.8 KB
- smoothiewebui.png
- 900×497
- 2018/08/24 15:44
- 166 KB
- sms_armeabi-v7a-0.3-armeabi-v7a-debug.apk
- 2020/01/04 09:07
- 11.9 MB
- soleno-transfo.jpg
- 900×506
- 2018/09/28 14:57
- 106.5 KB
- soncomplexe.jpg
- 302×644
- 2019/04/09 12:25
- 29.1 KB
- sonic-pi.png
- 1280×683
- 2018/10/20 19:04
- 160.7 KB
- sous-bois.jpg
- 1200×900
- 2020/07/24 11:50
- 550.9 KB
- space-4046-page.jpeg
- 3508×4961
- 2018/10/18 14:16
- 1.4 MB
- space-4046-pcbv0-1-back.jpg
- 900×506
- 2018/10/18 14:15
- 116.7 KB
- space-4046-pcbv0-1-face.jpg
- 900×506
- 2018/10/18 14:15
- 115 KB
- space-4046-sch.png
- 968×615
- 2018/10/18 14:15
- 19.6 KB
- space-4046-v0.32.jpg
- 1920×1080
- 2018/10/18 14:16
- 524.1 KB
- spaceinvaderaginsexism.jpg
- 640×416
- 2019/10/02 12:10
- 25.3 KB
- spgodot.png
- 257×387
- 2020/03/06 10:15
- 9 KB
- spi_adc088s102.zip
- 2020/04/21 15:38
- 2.8 MB
- spinner.jpg
- 220×230
- 2018/03/22 14:52
- 6.7 KB
- spirulina_labomedia_120320.pdf
- 2020/03/13 16:45
- 23.7 MB
- st_pierre_le_puellier1.pdf
- 2018/07/10 08:52
- 695.4 KB
- stacked-shields_large.jpg
- 473×480
- 2019/04/27 10:01
- 38.3 KB
- stamp01.jpg
- 447×386
- 2018/09/28 14:11
- 23.6 KB
- stamp02.jpg
- 388×387
- 2018/09/28 14:11
- 20.9 KB
- stator-encolage.jpg
- 640×480
- 2018/07/31 12:49
- 75 KB
- stator-encole.jpg
- 640×480
- 2018/07/31 12:49
- 67.1 KB
- stator-sortie-cnc.jpg
- 293×378
- 2018/07/31 12:49
- 31.6 KB
- stickarcade01.jpg
- 634×215
- 2020/04/05 18:04
- 23.2 KB
- stickarcade02.jpg
- 2048×1650
- 2020/04/05 18:31
- 269.5 KB
- stickarcade03.jpg
- 653×490
- 2020/04/05 18:45
- 114.8 KB
- stickarcade04.jpg
- 649×433
- 2020/04/05 18:54
- 102.9 KB
- stickarcade05.jpg
- 653×378
- 2020/04/05 18:59
- 38.6 KB
- stickarcade06.jpg
- 475×288
- 2020/04/05 19:04
- 31.1 KB
- stickarcade07.jpg
- 915×563
- 2020/04/05 19:13
- 149.9 KB
- stickersqrcode.png
- 2835×2835
- 2018/07/29 08:33
- 1.5 MB
- stickmaker.jpg
- 674×387
- 2018/03/27 15:03
- 66.4 KB
- stimuline-lynn-pook-et-julien-clauss-france-2008-784x525.jpg
- 784×525
- 2018/07/26 16:45
- 58.5 KB
- stock-firmware-falco-20181101.rom.zip
- 2018/11/01 21:57
- 1.7 MB
- stockageaimantseoliennehighttech.jpg
- 640×137
- 2018/07/31 12:49
- 18.6 KB
- stp63955.jpg
- 2816×2112
- 2019/05/10 13:13
- 2.7 MB
- streaming.jpg
- 594×336
- 2018/07/29 09:02
- 56.4 KB
- studio-hero-1.jpg
- 960×540
- 2018/07/26 08:00
- 224.7 KB
- suivi_18.png
- 2470×1076
- 2019/11/25 20:32
- 196.5 KB
- suivi_essai_final.png
- 2198×1076
- 2019/11/27 14:22
- 180.1 KB
- suivi_essais.ods
- 2019/12/11 16:19
- 56.3 KB
- suivi_essais.png
- 1329×748
- 2019/11/01 10:42
- 93 KB
- summerlab_b.jpg
- 1024×683
- 2018/07/29 12:38
- 487.2 KB
- summerlab-ibniz-latest.txt.zip
- 2019/02/23 16:20
- 4.6 KB
- support_tirer-lacher.png
- 2684×1478
- 2019/10/15 14:40
- 106.8 KB
- support-mirror2.zip
- 2018/09/20 16:39
- 40.8 KB
- supportaxe.png
- 1414×1298
- 2018/03/27 15:08
- 21.6 KB
- supportembout.png
- 1798×1538
- 2019/11/02 11:36
- 40.2 KB
- supportlaser-c01n-1-1.scad.zip
- 2018/09/10 13:49
- 4.5 KB
- supportlaser-c01n.scad.zip
- 2018/09/07 11:07
- 2.7 KB
- supportmarqueur.png
- 1848×1538
- 2019/11/02 15:26
- 77.9 KB
- supportpotetiometre.png
- 1414×1298
- 2018/03/27 15:09
- 26.5 KB
- surfacage1-cnc.jpg
- 900×675
- 2018/08/29 12:50
- 153 KB
- surfacage2-cnc.jpg
- 900×675
- 2018/08/29 12:50
- 157.8 KB
- surlepontdemai.jpg
- 640×480
- 2018/07/31 12:49
- 66.2 KB
- surround-export.jpg
- 648×487
- 2018/08/29 10:19
- 44.7 KB
- swr_rs_nauss.jpg
- 1000×729
- 2018/07/29 13:38
- 65.7 KB
![[racine]](/logs_raphael_bismuth?ns=&tab_files=files&do=media&tab_details=view&image=media_12%3Aschumann_hammer-800px-01.jpg){kind=link}
Fichier
- Voir
- Éditer
- Historique
- Date :
- 2018/07/28 16:20
- Nom de fichier :
- schumann_hammer-800px-01.jpg
- Format :
- JPEG
- Taille :
- 276KB
- Largeur :
- 800
- Hauteur :
- 1067
- Utilisé sur:
- Formation numérique et éducation artistique
logs_raphael_bismuth.txt · Dernière modification : 2021/03/11 17:14 de Bismuth