TheReturnOfPEB@reddthat.com to Technology@lemmy.worldEnglish · 1 年前Hearing is be-leafing: Students invent quieter leaf blowerhub.jhu.eduexternal-linkmessage-square171linkfedilinkarrow-up1614arrow-down114
arrow-up1600arrow-down1external-linkHearing is be-leafing: Students invent quieter leaf blowerhub.jhu.eduTheReturnOfPEB@reddthat.com to Technology@lemmy.worldEnglish · 1 年前message-square171linkfedilink
minus-squarepr06lefs@lemmy.mllinkfedilinkEnglisharrow-up9·1 年前Yes they literally pull in particles from the bathroom air and blow them directly on your hands.
minus-squarewhereisk@lemmy.worldlinkfedilinkEnglisharrow-up7·1 年前Plus a good chunk of people only wash hands for show: the water runs for 1 sec it barely touches their fingertips, then go on to these dryers and whatever is on their hands flies out everywhere.
Yes they literally pull in particles from the bathroom air and blow them directly on your hands.
Plus a good chunk of people only wash hands for show: the water runs for 1 sec it barely touches their fingertips, then go on to these dryers and whatever is on their hands flies out everywhere.