Ceturtdien, 29.aprīlī  plkst. 18:00 Latvijas Universitātes kafejnīcā tiek organizēts "Zinātnes kafejnīcas" pasākums. Šoreiz pasākums būs veltīts lāzeru izgudrošanas 50 gadu jubilejai - ”LĀZERI”. Lāzeru gaisma ir pati spožākā zināmā gaisma. Lāzeru lieto gandrīz visās zinātnēs un tehnoloģiju jomās. Tas dod krāsainas gaismas kūli, kas ir zīmuļa resnumā, tas var būt tik intensīvs, ka izkausē caurumu tēraudā. Lāzers var arī būt tik taisns un tievs, ka ar to var precīzi nomērķēt uz mazu spogulīti, kas atrodas uz Mēness 384 401 km attālumā. 1960. gadā zinātnieks Teodors Meimens uzbūvēja pirmo lāzeru. Meimers ieguva lāzera gaismas kūli, ar parastu impulsa gaismu apstarojot īpašu sintētiskā rubīna stieni.



Par lāzeriem vispārīgi stāstīs – Fizikas un matemātikas fakultātes elektronikas inženieris Juris Ulmanis, Cietvielu fizikas institūta  (CFI) pētnieks Aivars Vembris skaidros par lāzeru pielietojumu un Cietvielu fizikas institūta pētnieks Anatolijs Šarakovskis - stāstīs par savu lāzeru CFI, kas esot viens no labākajiem Latvijā. Atomfizikas un spektroskopijas institūta  Biooptikas un šķiedru optikas laboratorijas pētnieks Aleksejs Ļihaovs  stāstīs par lāzeriem medicīnā.

Būs arī maza demonstrācija - lāzeru grafiti - zīmēšana uz projektora ar lāzerīti un tajā  varēs iesaistīties arī klausītāji.

Pasākumu, kā vienmēr, vadīs Dr. Juris Šteinbergs – zinātnieks un populāra TV raidījuma seja.

"Zinātnes kafejnīcas" mērķis ir raisīt brīvu diskusiju neformālā vidē par sabiedrību interesējošiem zinātnes jautājumiem. Tā ir iespēja tikties ar attiecīgās jomas ekspertiem un uzdot viņiem jebkuru gan skolotājam, skolēnam, studentam, ierēdnim, bibliotekāram, gan uzņēmējam un pensionāram interesējošu jautājumu un noskaidrot līdz šim neizprasto par kādu konkrētu zinātnes jomu, šoreiz arī par seniem sapņiem kā uzbūvēt īstu lāzeri.
       
"Zinātnes kafejnīcas" diskusija notiks brīvā stilā pie kafijas tases vai sulas glāzes, kas kafejnīcas apmeklētājiem būs par brīvu.

Visi laipni aicināti apmeklēt "Zinātnes kafejnīcas" pasākumu!
 
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