Zerush@lemmy.ml to Science Memes@mander.xyzEnglish · 9 个月前US educationlemmy.mlimagemessage-square366linkfedilinkarrow-up11.23Karrow-down134cross-posted to: science@hexbear.net
arrow-up11.2Karrow-down1imageUS educationlemmy.mlZerush@lemmy.ml to Science Memes@mander.xyzEnglish · 9 个月前message-square366linkfedilinkcross-posted to: science@hexbear.net
9V battery and tongue, or electric fence