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  2. List of highly toxic gases - Wikipedia

    en.wikipedia.org/wiki/List_of_highly_toxic_gases

    Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.

  3. Deep and Dark and Dangerous - Wikipedia

    en.wikipedia.org/wiki/Deep_and_Dark_and_Dangerous

    Deep and Dark and Dangerous is a 2007 children's mystery horror novel written by Mary Downing Hahn.It was first published on May 21, 2007 through Clarion Books and follows a young girl who tries to investigate a torn photograph but gets wrapped up in a larger mystery.

  4. Wikipedia:WikiProject Spoken Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:WikiProject...

    Software that converts text to voice is readily available and can be easily used to read out Wikipedia pages on-the-fly. See screen reader. The web-based Pediaphon service uses speech synthesis to generate MP3 audio files and podcasts of Wikipedia articles in

  5. Periodic Videos - Wikipedia

    en.wikipedia.org/wiki/Periodic_Videos

    Periodic Videos (also known as The Periodic Table of Videos) is a video project and YouTube channel on chemistry.It consists of a series of videos about chemical elements and the periodic table, with additional videos on other topics in chemistry and related fields.

  6. The Golden Book of Chemistry Experiments - Wikipedia

    en.wikipedia.org/wiki/The_Golden_Book_of...

    Children's literature portal; The Golden Book of Chemistry Experiments is a children's chemistry book written in 1960 by Robert Brent and illustrated by Harry Lazarus and published by Western Publishing as part of their Golden Books series.

  7. 'Lessons in Chemistry,' starring Brie Larson, drops new episodes on Apple TV+ every Friday until the November 24 finale. Here's a look at the release date schedule.

  8. Wikipedia:Spoken articles - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Spoken_articles

    This page lists recordings of Wikipedia articles being read aloud, and the year each recording was made. Articles under each subject heading are listed alphabetically (by surname for people). For help playing Ogg audio, see Help:Media. To request an article to be spoken, see Category:Spoken Wikipedia requests.

  9. Cadmium poisoning - Wikipedia

    en.wikipedia.org/wiki/Cadmium_poisoning

    Cadmium is a naturally occurring toxic metal with common exposure in industrial workplaces, plant soils, and from smoking. Due to its low permissible exposure in humans, overexposure may occur even in situations where only trace quantities of cadmium are found.