1930s montage men in lab handle dust in hands before pouring beaker of liquid onto the contents / washington, d.c., united states - 矽石 個影片檔及 b 捲影像00:38
human hand holding and spilling the sand in a glassblowing workshop. ready to melt into glass - 矽石 個影片檔及 b 捲影像00:21
1930s montage man uses factory equipment to drill into a material that creates dust / washington d.c., united states - 矽石 個影片檔及 b 捲影像00:16
close-up shot of raw glass material for fiberglass manufacturing during dry midday in usa — static shot - 矽石 個影片檔及 b 捲影像00:07
close-up shot of raw glass material for fiberglass manufacturing during dry midday in usa — static shot - 矽石 個影片檔及 b 捲影像00:08
molten fiberglass glowing in industrial oven at fiberglass production facility during dry midday in usa — extreme close-up static shot - 矽石 個影片檔及 b 捲影像00:05
human hand digging in the shiny glass shards in a glassblowing workshop. ready to melt into glass - 矽石 個影片檔及 b 捲影像00:18
human hand digging in the sand in a glassblowing workshop. ready to melt into glass - 矽石 個影片檔及 b 捲影像00:25
the first many-celled animals: sponges (revised) - part 14 of 22. live-action photography, animation, and photomicrography are used to show the life processes and adaptations of sponges. this film shows how these primitive, multi-celled animals depend on - 矽石 個影片檔及 b 捲影像00:33
workers carry and load stones onto a machine to crash them at jaflong on june 23, 2022 in sylhet, bangladesh. a debilitating lung disease caused by... - 矽石 個影片檔及 b 捲影像00:15
1930s montage two men open containers, and in doing so release dust into the air / washington d.c., united states - 矽石 個影片檔及 b 捲影像00:16
medium shot of raw glass melting oven glowing inside fiberglass production facility during dry midday in usa — panning shot - 矽石 個影片檔及 b 捲影像00:15
close up static shot of molten fiberglass glowing in industrial oven at fiberglass production facility during dry midday in usa — static shot - 矽石 個影片檔及 b 捲影像00:04美國
santosh devi's husband is one of many in the mining belt of india's rajasthan state who suffer from silicosis, a disease caused by inhaling fine... - 矽石 個影片檔及 b 捲影像07:04
panning close-up shot of raw glass melting oven glowing inside fiberglass production facility during dry midday in usa — panning shot - 矽石 個影片檔及 b 捲影像00:16
someone pouring silica gel into a box for drying rose flowers. the process to dry or preserve flowers is pretty simple and easy, when you use a functional and efficient drying material such as silica gel. - 矽石 個影片檔及 b 捲影像00:45
human hand digging in the sand in a glassblowing workshop. ready to melt into glass - 矽石 個影片檔及 b 捲影像00:16
semi back view of worker in mask spraying paint / back view of worker with head cover spraying paint / worker in protective head cover / worker... - 矽石 個影片檔及 b 捲影像00:32
workers crush stones at jaflong on june 23, 2022 in sylhet, bangladesh. a debilitating lung disease caused by silica dust is taking a huge toll on... - 矽石 個影片檔及 b 捲影像00:18
workers are busy with stone crushing in bangladesh.a debilitating lung disease caused by silica dust is taking a huge toll on the health of labourers... - 矽石 個影片檔及 b 捲影像01:37
workers are busy with stone crushing in bangladesh.a debilitating lung disease caused by silica dust is taking a huge toll on the health of labourers... - 矽石 個影片檔及 b 捲影像00:22
workers are busy with stone crushing in bangladesh.a debilitating lung disease caused by silica dust is taking a huge toll on the health of labourers... - 矽石 個影片檔及 b 捲影像00:23
large mound of silica dust stands outdoors / hand picks up dust, sifts it / note: exact day not known - 矽石 個影片檔及 b 捲影像00:06
1930s montage workers use equipment and water to help drill into stone / washington d.c., united states - 矽石 個影片檔及 b 捲影像00:22
1930s montage workers use equipment to drill into stone / washington d.c., united states - 矽石 個影片檔及 b 捲影像00:23
1930s montage worker uses machine to drill into a piece of stone / washington d.c., united states - 矽石 個影片檔及 b 捲影像00:11
1930s montage worker shovels substance into a wheelbarrow, creating dust cloud around him / washington d.c., united states - 矽石 個影片檔及 b 捲影像00:16
woman sitting at work table with glass stars plate for star projector inserted into microscope, she adjusts plate in microscope and looks at it... - 矽石 個影片檔及 b 捲影像00:50