diff --git a/src/main/resources/assets/actuallyadditions/lang/en_US.lang b/src/main/resources/assets/actuallyadditions/lang/en_US.lang
index 877db55f2..44edf344f 100644
--- a/src/main/resources/assets/actuallyadditions/lang/en_US.lang
+++ b/src/main/resources/assets/actuallyadditions/lang/en_US.lang
@@ -857,8 +857,8 @@ booklet.actuallyadditions.chapter.fireworkBox.name=Firework Box
 booklet.actuallyadditions.chapter.fireworkBox.text.1=The <item>Firework Box<r> is a perfect thing for New Year's! When placed down and supplied with some <imp>RF<r>, it will shoot out some <imp>randomly generated<r> <item>Fireworks<r> around it. <n>For each shot, it uses <rf> RF. <n><n><i>You know, Vanilla Fireworks are just too bloody annoying to craft, but too awesome not to use. So here's the solution.
 booklet.actuallyadditions.chapter.fireworkBox.text.2=When right-clicking it with a <item>Redstone Torch<r> in hand, it will change between a mode where it <imp>gets deactivated by Redstone<r> and a mode where it <imp>responds to pulses<r>.
 
-booklet.actuallyadditions.chapter.rf.name=RF (Redstone Flux)
-booklet.actuallyadditions.chapter.rf.text.1=For anyone who hasn't used much of a mod that uses <imp>RF<r> yet, here's a quick explanation. <n><imp>Redstone Flux<r>, or RF for short, is a power system used by many mods. <n>The basic concept is is that lots of machines generate or use it <imp>every game tick<r>. That's what <imp>RF/t<r> means. <n>To connect a power generating (thus, outputting) machine to one that needs (thus, receives) power, just <imp>place it next to it<r>. <n><n><i>What's a fourth wall?
+booklet.actuallyadditions.chapter.rf.name=RF? Tesla?
+booklet.actuallyadditions.chapter.rf.text.1=For anyone who hasn't used much of a mod that uses <item>RF<r> yet, here's a quick explanation. <n><imp>Redstone Flux<r> is a power system used by many mods. <n>The basic concept is is that machines generate or use it <imp>every game tick<r>. That's what <imp>RF/t<r> means. <n>To connect machines, just <imp>place them next to each other<r>. <n>Also, if you fancy that sort of thing, all machines also work with <item>Tesla<r> in the same way they do with RF.
 
 booklet.actuallyadditions.chapter.enderStar.name=Ender Star
 booklet.actuallyadditions.chapter.enderStar.text.1=The <item>Ender Star<r> can be obtained by both killing a wither and going to the end to collect Dragon's Breath. The latter is obtained by using a bottle on the purple particles that the dragon spits out. <n>The <item>Ender Star<r> is used for <imp>multiple crafting recipes<r>.