Hashtag
Men's Weekly

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

Sleep Dentistry for Anxiety: How Modern Treatment Helps Patients Relax

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

For many people, dental anxiety isn’t just a minor worry — it’s a barrier that keeps them from getting the care they need. The sound of drills, the sterile scent, or even a simple check-up can cause h...

How to Choose the Right Earplugs for Sleeping: A Comprehensive Guide

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

Getting a restful night's sleep is essential for overall health and well-being. For many, external noises—be it a snoring partner, traffic, or noisy neighbors—can disrupt sleep patterns. One effective...

How Teen Depression Differs from Normal Adolescent Mood Swings

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

Adolescence is often described as a turbulent period of life. Hormonal changes, social pressures, academic stress, and the search for identity all combine to make the teenage years emotionally inten...

hacklink hack forum hacklink film izle hacklink สล็อตเว็บตรงbets10bettiltpusulabetGalabetaviator gametimebetbahisocasibomcasibomcasibomcrown155auhb88ausuper96 casinonorabahiscasibom한국야동casibom girişpadişahbetcasibomBetigma Girişgiftcardmall/mygiftspin2u casino loginneoaus96 casinoGalabetzirvebetmarsbahisjojobetgooglebets10ff96 appStreameaststakemate77best e-wallet pokies 2025jojobetizmit escortjojobetstreameastmostbetmatbet girişkavbetcasibomcasibom girişsadfasdfsdfasdasdasdasdmeritkingpusulabetjojobettaraftariumpin up azugwin288mamibetslotCasibomartemisbetbetasusbest e wallet pokies australiahttps://mrvip77.comjojobetsahabet girislunabetjojobetcasibomซื้อหวยออนไลน์ lottosekabetcasibom girişhazbetsitus slot gacorGalabetcasino online non aams sicuriizmit escortmigliori siti scommesseonwin girişBest eSIM for Caribbean Cruisenuovi siti scommessepusulabetpusulabetartemisbetbetasusholiganbet girişmeritkingpusulabetjojobetmarsbahiscasibomjojobet girişgiftcardmall/mygiftmamibet slotcasibom güncel girişholiganbet girişcasibombets10marsbahismeritkingholiganbetprimebahismatbetcasibomjojobetonwinbetpasbets10jojobetbetnano