The Naked Scientist explains zika virus, airplanes, allergies and voices

702 listeners satisfied their curiosity about the world by throwing science questions on any subject to the doctor and scientist.

Listen to Dr. Chris Smith answering questions from listeners during the Redi Tlhabi show below...

The reason that airoplanes fly forward is because of the way wings work to create lift and birds are gonna be a little bit similar. An airoplane wing and bird's wing work by pushing air in one direction, and if you push air in one direction the air generator force on you in the opposite direction pushing upwards.

Dr Chris Smith, lecturer in virology at Cambridge University, UK

The reason we have allergy is because there are proteins, which are chemicals, in things in the world around us to which we have developed some kind of anti-body (called IGE) response.

Dr Chris Smith, lecturer in virology at Cambridge University, UK

The shape of your mouth and also the shape of your head dictate what frequencies get amplified best. And this is why we all have different sound voices.

Dr Chris Smith, lecturer in virology at Cambridge University, UK

702 welcomes all comments that are constructive, contribute to discussions in a meaningful manner and take stories forward.

However, we will NOT condone the following:

  • Racism (including offensive comments based on ethnicity and nationality)
  • Sexism
  • Homophobia
  • Religious intolerance
  • Cyber bullying
  • Hate speech
  • Derogatory language
  • Comments inciting violence.

We ask that your comments remain relevant to the articles they appear on and do not include general banter or conversation as this dilutes the effectiveness of the comments section.

We strive to make the 702 community a safe and welcoming space for all.

702 reserves the right to: 1) remove any comments that do not follow the above guidelines; and, 2) ban users who repeatedly infringe the rules.

Should you find any comments upsetting or offensive you can also flag them and we will assess it against our guidelines.

702 is constantly reviewing its comments policy in order to create an environment conducive to constructive conversations.

Read More
Parental vigilance essential in averting drug-addicted kids, psychologist says

Parental vigilance essential in averting drug-addicted kids, psychologist says

Drug addiction doesn't discriminate and can affect any family. Khosi Jiyane explores difficulties parenting kids hooked on drugs.

Mugabe is the master of deception - Zim political analyst

Mugabe is the master of deception - Zim political analyst

President Mugabe has not resigned as many had hoped. Two Zimbabwean analysts weigh in on what could happen next to the president.

Talking Sex with Dr Eve: Bullied as a child, sexually dysfunctional as an adult?

Talking Sex with Dr Eve: Bullied as a child, sexually dysfunctional as an adult?

Eusebius McKaiser and resident sexologist Dr Eve speak about how being bullied as a child could affect your adult sexual life.

ANC stalwarts to host independent consultative conference

ANC stalwarts to host independent consultative conference

Karima Browns says the ANC has responded to the stalwarts' gathering stating it is not a sanctioned party event.

Naked Scientist: Discovery of an earth-sized planet called Ross-128b

Naked Scientist: Discovery of an earth-sized planet called Ross-128b

Chris Smith joins the Eusebius McKaiser Show every Friday to answer questions on science or just about anything else.

Listeners read passages from their favourite books, essays and poems

Listeners read passages from their favourite books, essays and poems

Callers show appreciation for the written word by reading excerpts on air during the Literature Corner with Eusebius McKaiser.

Popular articles
7 tips on how to keep your child safe in public

7 tips on how to keep your child safe in public

Social worker and Childline manager Faiza Khota shares practical advise on how to help protect children in public spaces.

Soon you may not be able to light up in public (indoors or out!)

Soon you may not be able to light up in public (indoors or out!)

The Dept of Health is looking to introduce draft legislation that includes a complete ban on all smoking in public areas.

'KZN nudist beach would be a draw card for international tourism'

'KZN nudist beach would be a draw card for international tourism'

Chairman of KZN Naturists Association Christo Bothma says having the section of the South Coast beach will boost the economy.

New drug known as 'flakka' hits Durban

New drug known as 'flakka' hits Durban

Sam Pillay, founder and director of Anti-Drug Forum SA says once the drug takes effect, the user appears possessed.

The President's Keepers: PDF version is tantamount to theft - Exclusive Books

The President's Keepers: PDF version is tantamount to theft - Exclusive Books

A PDF version of the book has been doing the rounds since Sars and the State Security Agency threatened legal action.

Falling out of love? Signs and stages of romantic disengagement

Falling out of love? Signs and stages of romantic disengagement

Can you love your partner, but no longer be in love with them? Dr Eve unravels stages of disaffection in romantic relationships.

Celibacy liberated me - Amanda Ndiki

Celibacy liberated me - Amanda Ndiki

Author Amanda Ndiki, celibate for 6 years describes her journey and how celibacy helped mend her sense of self.

'The university degree is dead'

'The university degree is dead'

Flux Trends founder Dion Chang gives five reasons why he believes getting a degree is past its sell by date.