Minor Splicing: 3, RAM, Stabby, Tyrant
Practical Steam Engine : 2, 10ebbor10, Azzuro
steam lumbermill: 1, Andrea
Canning: 0
Medical Science: 0
Spider Silk Armor(a): 0
Spider Silk Armor(b): 0
Control Beasts: 0
Greatest Fireball: 0
Horse Breeding: 0
Blazing Sight: 0
Summon Sea Monsters: 0
Anchor Net System: 0
Gun Powder Bombs: 0
Exclusive Anti-Magic Amulets: 0
spell of antimagic: 0
Please don't start on another chain of research before we've got steam engines running, people, otherwise the previous turn was just wasted. We've got a unique opportunity here with the Revision Credit, let's not waste it.
Also, I hate to be
that guy, but needle arrows are pretty much useless at armour-piercing. Like, I'm 100% sure that whatever the Moskurgs were using before, it's definitely better. For the same mass of metal, a needle's minimal possible cross-sectional area will guarantee it deforms/snaps on impact with metal if not striking perfectly (and I mean
perfectly) head-on, which only grows more difficult as the length of the needle increases, thus wasting the kinetic energy of the arrow. A reasonably-tapered spike with polygonal cross-section would be more efficient overall at piercing metal across a range of impact angles, and in real medieval history this was accomplished in the famous bodkin-point arrowhead and all the variations thereof.
Admittedly IRL needlelike arrows did see limited use, but for penetrating exposed chain mail, not plate mail. Thinner arrowheads would be better at both pushing aside and going through the chain links than broader ones, which had to expend energy to break links that the point passed through.