Hashtag
The Times

How a 150-year-old experiment with a beam of light showed germs exist -- and that a face mask can help filter them out

  • Written by Ian Hesketh, ARC Future Fellow, The University of Queensland
How a 150-year-old experiment with a beam of light showed germs exist -- and that a face mask can help filter them outJohn Tyndall used a beam of light to reveal floating motes of organic matter in the air which he believed carried disease.Shutterstock

Respirators and face masks are staple pieces of personal protective equipment for hospital workers and others in public health, as the COVID-19 pandemic has reminded us.

They can protect the wearer, but for diseases...

Read more

More Articles ...

  1. Has coronavirus killed ideology? No, it's just cycled it around again
  2. As coronavirus widens the renter-owner divide, housing policies will have to change
  3. Anzac biscuits, battles and a great Australian isolation bake-off
  4. don't sacrifice health for 'the economy'
  5. The coronavirus supplement is the biggest boost to Indigenous incomes since Whitlam. It should be made permanent

Health & Wellness

What Do Clinical Teams Need from Their Surgical Supply Partners?

Hashtag.net.au - avatar Hashtag.net.au

In clinical settings, surgical supply partners aren’t just vendors. They sit quietly behind the scenes of operating lists, specialist consultations, treatment rooms and recovery workflows. When they...

The Growing Focus on Communication Development in Children

Hashtag.net.au - avatar Hashtag.net.au

The early developmental years of a child's life represent a critical window for neurological growth, behavioural shaping, and language acquisition. During this formative phase, the ability to interpre...

Looking for a Family Dentist in Sydney? Here's What To Consider

Hashtag.net.au - avatar Hashtag.net.au

Finding the right family dentist in Sydney is one of the most important health decisions you can make for your household. With hundreds of practices spread across the city — from Beecroft to Bondi, Pa...

hacklink hack forum hacklink film izle hacklink online casinos australiaonwinonline casino australiaesim usakuşadası escortfethiye escortmix parlaydeneme bonusu veren siteler 2026non gamstop casinoscasino sitesonline casinoonline casinoonline casinosonline casino australiaroyal reelsroyal reels casino australiaroyalreels.pokerbetpipopusulabetthe pokies casinoz.library idjojobetสล็อตสล็อตroyal reels casinograndpashabetstakebetpipo-ensonadres.comGalabetcasibomholiganbetjojobetistanbul escortpashagaming giriş