1,000 Degree Knife Videos are recordings of knives heated until they are glowing hot which are used to cut through a variety of objects. After the videos began widely circulating in late 2016, some praised the content as oddly satisfying while others condemned it as a type of YouTube clickbait.
On December 18th, 2016, the MrGear channel uploaded a video titled "Experiment – Glowing 1000 Degree Knife Vs Coca Cola" (shown below). Within 11 days, the video accumulated upwards of 61 million views and 71,300 comments.
Precursor: Red Hot Nickel Ball Videos
On February 28th, 2013, the carsandwater YouTube channel uploaded a video of a ball of nickel heated till it is glowing placed on a pillar of dry ice (shown below). Within four years, the video gained over 4.2 million views and 2,200 comments. Over the next several years, the channel published 96 additional red hot nickel ball videos.
On December 20th, 2016, MrGear released a video titled "Glowing 1000 Degree Knife Vs Lighter," in which lighters are cut in half with heated knife, receiving more than 34.2 million views and 55,800 comments in nine days (shown below). That following day, the original MrGear video was reposted on 9gag and Laughing Squid.
On December 23rd, the Top15s YouTube channel uploaded a compilation of the "Top 15 Most Satisfying 1000 Degree Knife Experiment Videos," featuring a voice over describing how heated knife videos elicit an ASMR response (shown below). That day, the internet news blog Geekologie published an article about the knife videos.
On December 24th, Redditor Nazrininator submitted a post titled "Whats with all those Glowing 1000 Degree Knife videos?" to /r/OutOfTheLoop, where some speculated that video creators were paying YouTube to feature the knife videos. The following day, Redditor dovahkonj1 submitted a post to /r/h3h3productions asking if h3h3productions subscribers were getting suggestions for "1000 degree knife" videos on YouTube. On December 28th, YouTube MaxMoeFoe uploaded a video titled "Glowing 1000 Degree Knife Vs. Pokemon Booster Packs" (shown below).
 Laughing Squid – Cutting Things in Half With a Glowing Knife Heated to 1000 Degrees