## Are those animated video thumbnails generate the same DNS from actual videos?

I have a very technical question about the latest feature shown on those video platforms, like YouTube and other. There’s been a trend lately that the classic still image thumbnails…

## Multivariate polynomials

Given a Diophantine equation $p(x_1,x_2,…,x_n)$ , Can I find a reduction from $\text{dioph}(\mathbb{N}) \leq \text{dioph}(\mathbb{N}_e)$ ? $\mathbb{N}_e$ is the set of even numbers. So I have to…

## PayPal put me 7000 negative because the buyer scam me, what can I do?

So, I sold a speaker for a buyer, and the guy sent money for me. That’s on hold for a while until the guy got his speaker and opened the…

## Weil restriction of a projective variety to a finite extension over $\mathbb{Q}$

My question maybe a bit stupid, but I can’t quite grasp what the Weil restriction actually does… In particular: Given a projective variety $V$ defined over $L$ algebraically…

## Back up my whatapp

0 I accidentally skipped Whatsapp restore option when I changed my device and now my backup on google drive is overwritten. How can I get my old backup? It was…

## Meaning of md5 hash of one’s email address

How to do md5 hash of one’s email address? By which software/website? I don’t know what md5 or hash means. What’s the definition of md5, hash?

## USB wireless adapter driver for linux

I’m trying to connect an Atheros ar1021x (ath6kl family) USB-Wireless adapter to a Raspberry Pi (with 4.14 kernel). My vendor provided a copy of driver source code, but it is…

## Условия перед группировкой sql

Есть запрос SELECT count( id ) as value, date_format( data, ‘%Y-%m-%d %H’ ) as my_date FROM stat AND GROUP BY my_date HAVING DATE_SUB(CURDATE(),INTERVAL 100 DAY) <=my_date ORDER BY my_date ASC…

## How do i run this normally I’m using python?

import sys from PyQt5 import QtWidgets from PyQt5.QtSql import QSqlQuery, QSqlDatabase from PyQt5.QtCore import Qt, QModelIndex from PyQt5.QtWidgets import QWidget, QApplication, QVBoxLayout, QPushButton, QTableWidget, QTableWidgetItem, QMessageBox, QHBoxLayout, QLineEdit, QLabel, QGridLayout…

## Unique index or primary key violation

Estou recebendo o erro abaixo ao tentar criar um novo item em uma tabela, nesta tabela possuo alguns itens previamente adicionados. 2019-03-17 00:05:09 WARN o.h.e.jdbc.spi.SqlExceptionHelper – SQL Error: 23505, SQLState:…