This article is part of our MLB Barometer series.
Pronunciation /ˈhiːliəm/ (HEE-lee-əm)
Frequently asked questions, according to Google:
• Is helium gas? (Yes.)
• What are the main uses of helium? (Mostly, balloons, blimps and arc welding.)
• Is it bad to inhale helium? (It doesn't kill brain cells.)
• Is Helium a diatomic? (No. It's a noble gas.)
• How do you make helium at home? (You can't.)
Player values fluctuate a lot over the course of draft season. Thankfully, the National Fantasy Baseball Championship begins offering paid drafts in December, giving us the ability to track the draft-day "cost" of a player over time.
As the fantasy community researches, writes and discusses players throughout the winter months, values shift. Over the years, we have started to refer to the biggest risers as players with helium, because of their soaring prices based on Average Draft Position (ADP) data.
Nuclear fusion of hydrogen in stars creates large amounts of new helium in the universe.
The shiny new toys (as Yahoo's Scott Pianowski calls them) create large amounts of new helium in the player pool.
Comparing the ADP data from the early NFBC drafts in December to the most recent reports from the first half of March, it's hardly surprising that some of the biggest risers this draft season have not played a full season at the big-league level, and in many case, they haven't even made their MLB debut yet.
Players with an ADP rise of 50 or more slots since the start of draft season include Ronald