Analyze the use of technology and or science in Dracula. Technologies include the typewriter the phonograph stenography blood transfusions telegraph

Analyze the use of technology and / or science in Dracula. (Technologies include the typewriter, the phonograph, stenography, blood transfusions, telegraph, even the trains—you may focus on one particular technology if you wish).
How does technology or science function in the novel?
What is its thematic purpose?
the response must be 700 words.
https://www.gutenberg.org/files/345/345-h/345-h.htm
link to reading

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